[iOS] Cannot read property 'DocumentDir' of undefined

[pgonzalez]

Hi!
I have an issue when I tried to integrate this module in my code. This error appears at start launch in the simulator/device.
Do you know what can I do?

[wkh237]

@pgonzalez , did you run rnpm link after npm install --save react-native-fetch-blob ? it looks like native module not linked.

[pgonzalez]

@wkh237 yes, I did and I still have this error

[wkh237]

@pgonzalez , I'm still looking into the problem, I've tried creating a new project and install the package, but I could not reproduce the error. If you're developing on IOS, please check the following settings.

Make sure the module is loaded in your .xcodeproj (should be located in ios/APPNAME/APPNAME.xcodeproj)

Make sure the module has been linked, check General -> Linked Frameworks and Libraries

Recompile the .xcodeproj

[pgonzalez]

when I add to Linked Frameworks and Libraries, I get
** BUILD FAILED **

The following build commands failed:
CompileC < AppProjectDir >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobFS.o RNFetchBlobFS.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler

[wkh237]

Okay, looks like something went wrong when linking native modules, it would be nice if you could provide me a more complete build log and RN version of the project, I believe it would be helpful !

[pgonzalez]

`Found Xcode workspace App.xcworkspace
Launching iPhone 6 (9.2)...
Building using "xcodebuild -workspace App.xcworkspace -scheme App -destination id=B06E3C4E-5759-43F1-8C98-534E7D017C68 -derivedDataPath build"
User defaults from command line:
IDEDerivedDataPathOverride = < App Directory >/ios/build

=== BUILD TARGET RCTImage OF PROJECT RCTImage WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RNFetchBlob OF PROJECT RNFetchBlob WITH CONFIGURATION Debug ===
Check dependencies
warning: no rule to process file '< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.h' of type sourcecode.c.h for architecture x86_64
iOS deployment target '9.3' for architecture 'x86_64' and variant 'normal' is greater than the maximum value '9.2.99' for the Simulator - iOS 9.2 SDK.

CompileC < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobNetwork.o RNFetchBlobNetwork.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
cd < App Directory >/node_modules/react-native-fetch-blob/ios
export LANG=en_US.US-ASCII
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Library/Frameworks/Python.framework/Versions/3.5/bin:/usr/local/bin:< User Directory >/Library/Android/sdk/tools:< User Directory >/Library/Android/sdk/platform-tools:< User Directory >/.nvm/versions/node/v5.10.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x objective-c -arch x86_64 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -std=gnu99 -fobjc-arc -fmodules -gmodules -fmodules-cache-path=< App Directory >/ios/build/ModuleCache -fmodules-prune-interval=86400 -fmodules-prune-after=345600 -fbuild-session-file=< App Directory >/ios/build/ModuleCache/Session.modulevalidation -fmodules-validate-once-per-build-session -Wnon-modular-include-in-framework-module -Werror=non-modular-include-in-framework-module -Wno-trigraphs -fpascal-strings -O0 -fno-common -Wno-missing-field-initializers -Wno-missing-prototypes -Werror=return-type -Wunreachable-code -Wno-implicit-atomic-properties -Werror=deprecated-objc-isa-usage -Werror=objc-root-class -Wno-arc-repeated-use-of-weak -Wduplicate-method-match -Wno-missing-braces -Wparentheses -Wswitch -Wunused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wempty-body -Wconditional-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-conversion -Wshorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wundeclared-selector -Wno-deprecated-implementations -DDEBUG=1 -DOBJC_OLD_DISPATCH_PROTOTYPES=0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk -fasm-blocks -fstrict-aliasing -Wprotocol -Wdeprecated-declarations -mios-simulator-version-min=9.3 -g -Wno-sign-conversion -fobjc-abi-version=2 -fobjc-legacy-dispatch -iquote < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-generated-files.hmap -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-own-target-headers.hmap -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-all-target-headers.hmap -iquote < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-project-headers.hmap -I< App Directory >/ios/build/Build/Products/Debug-iphonesimulator/include -I< App Directory >/node_modules/react-native-fetch-blob/ios/Libraries -I< App Directory >/node_modules/react-native-fetch-blob/ios/../node_modules/react-native/React -I../../React -I../../React/dist -I../../React/lib -I../../react-native/React -I../../react-native/React/Base -I../../react-native/React/Executors -I../../react-native/React/Layout -I../../react-native/React/Modules -I../../react-native/React/Profiler -I../../react-native/React/Views -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../node_modules/react-native/React -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../node_modules/react-native-fetch-blob/ios/RNFetchBlob -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../RNFetchBlobTest/node_modules/react-native -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/DerivedSources/x86_64 -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/DerivedSources -F< App Directory >/ios/build/Build/Products/Debug-iphonesimulator -MMD -MT dependencies -MF < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobNetwork.d --serialize-diagnostics < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobNetwork.dia -c < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m -o < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobNetwork.o
In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:14:
< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:29:38: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
@Property (nonatomic) NSOutputStream * outStream;
^
< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:63:23: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]

• (void)write:(NSData *) chunk;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:64:36: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)writeEncodeChunk:(NSString *) chunk;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:65:32: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)readWithPath:(NSString *)path useEncoding:(NSString *)encoding bufferSize:(int) bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:65:61: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)readWithPath:(NSString *)path useEncoding:(NSString *)encoding bufferSize:(int) bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:32:13: error: ARC forbids synthesizing a property of an Objective-C object with unspecified ownership or storage attribute
  @synthesize callback;
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.h:24:56: note: property declared here
  @Property (nullable, nonatomic) RCTResponseSenderBlock callback;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:35:13: error: ARC forbids synthesizing a property of an Objective-C object with unspecified ownership or storage attribute
  @synthesize fileTaskCompletionHandler;
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.h:28:50: note: property declared here
  @Property (nullable, nonatomic) CompletionHander fileTaskCompletionHandler;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:36:13: error: ARC forbids synthesizing a property of an Objective-C object with unspecified ownership or storage attribute
  @synthesize dataTaskCompletionHandler;
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.h:29:58: note: property declared here
  @Property (nullable, nonatomic) DataTaskCompletionHander dataTaskCompletionHandler;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:64:19: warning: local declaration of 'taskId' hides instance variable [-Wshadow-ivar]
  self.taskId = taskId;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:66:21: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  self.callback = callback;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:70:20: warning: local declaration of 'options' hides instance variable [-Wshadow-ivar]
  self.options = options;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:77:9: warning: local declaration of 'options' hides instance variable [-Wshadow-ivar]
  if([options valueForKey:CONFIG_TRUSTY] != nil)
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:92:16: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  if(error != nil) {
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:93:17: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[error localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:93:29: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  callback(@[[error localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:101:17: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[taskErr localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:104:13: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[NSNull null], path]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:113:16: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  if(error != nil) {
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:114:17: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[error localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:114:29: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  callback(@[[error localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:123:17: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[taskErr localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:126:13: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[NSNull null], tmpPath]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:119:61: warning: capturing 'self' strongly in this block is likely to lead to a retain cycle [-Warc-retain-cycles]
  NSString * tmpPath = [RNFetchBlobFS getTempPath:self.taskId withExtension:[self.options valueForKey:CONFIG_FILE_EXT]];
  ^~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:112:9: note: block will be retained by the captured object
  self.fileTaskCompletionHandler = ^(NSURL * _Nullable location, NSURLResponse * _Nullable response, NSError * _Nullable error) {
  ^~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:134:16: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  if(error != nil) {
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:135:17: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[error localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:135:29: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  callback(@[[error localizedDescription]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:139:17: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  callback(@[[NSNull null], [resp base64EncodedStringWithOptions:0]]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:73:16: warning: unused variable 'ext' [-Wunused-variable]
  NSString * ext = [self.options valueForKey:CONFIG_FILE_EXT];
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:159:21: warning: implicit conversion loses integer precision: 'long long' to 'int' [-Wshorten-64-to-32]
  expectedBytes = [response expectedContentLength];
  ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:167:13: warning: incompatible pointer to integer conversion initializing 'Boolean' (aka 'unsigned char') with an expression of type 'id _Nullable' [-Wint-conversion]
  Boolean fileCache = [self.options valueForKey:CONFIG_USE_TEMP];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:170:33: warning: comparison between pointer and integer ('int' and 'void *')
  if(path == nil && fileCache == nil) {
  ~~~~~~~~~ ^ ~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:185:12: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  NSLog([error localizedDescription]);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:185:11: warning: format string is not a string literal (potentially insecure) [-Wformat-security]
  NSLog([error localizedDescription]);
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:186:18: warning: local declaration of 'error' hides instance variable [-Wshadow-ivar]
  self.error = error;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:192:21: warning: implicit conversion loses integer precision: 'int64_t' (aka 'long long') to 'int' [-Wshorten-64-to-32]
  expectedBytes = totalBytesExpectedToWrite;
  ~ ^~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:24:17: warning: method definition for 'sendRequest' not found [-Wincomplete-implementation]
  @implementation RNFetchBlobNetwork
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobNetwork.h:34:1: note: method 'sendRequest' declared here
• (void) sendRequest;
  ^
  33 warnings and 3 errors generated.

CompileC < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobFS.o RNFetchBlobFS.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
cd < App Directory >/node_modules/react-native-fetch-blob/ios
export LANG=en_US.US-ASCII
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Library/Frameworks/Python.framework/Versions/3.5/bin:/usr/local/bin:< User Directory >/Library/Android/sdk/tools:< User Directory >/Library/Android/sdk/platform-tools:< User Directory >/.nvm/versions/node/v5.10.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x objective-c -arch x86_64 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -std=gnu99 -fobjc-arc -fmodules -gmodules -fmodules-cache-path=< App Directory >/ios/build/ModuleCache -fmodules-prune-interval=86400 -fmodules-prune-after=345600 -fbuild-session-file=< App Directory >/ios/build/ModuleCache/Session.modulevalidation -fmodules-validate-once-per-build-session -Wnon-modular-include-in-framework-module -Werror=non-modular-include-in-framework-module -Wno-trigraphs -fpascal-strings -O0 -fno-common -Wno-missing-field-initializers -Wno-missing-prototypes -Werror=return-type -Wunreachable-code -Wno-implicit-atomic-properties -Werror=deprecated-objc-isa-usage -Werror=objc-root-class -Wno-arc-repeated-use-of-weak -Wduplicate-method-match -Wno-missing-braces -Wparentheses -Wswitch -Wunused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wempty-body -Wconditional-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-conversion -Wshorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wundeclared-selector -Wno-deprecated-implementations -DDEBUG=1 -DOBJC_OLD_DISPATCH_PROTOTYPES=0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk -fasm-blocks -fstrict-aliasing -Wprotocol -Wdeprecated-declarations -mios-simulator-version-min=9.3 -g -Wno-sign-conversion -fobjc-abi-version=2 -fobjc-legacy-dispatch -iquote < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-generated-files.hmap -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-own-target-headers.hmap -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-all-target-headers.hmap -iquote < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-project-headers.hmap -I< App Directory >/ios/build/Build/Products/Debug-iphonesimulator/include -I< App Directory >/node_modules/react-native-fetch-blob/ios/Libraries -I< App Directory >/node_modules/react-native-fetch-blob/ios/../node_modules/react-native/React -I../../React -I../../React/dist -I../../React/lib -I../../react-native/React -I../../react-native/React/Base -I../../react-native/React/Executors -I../../react-native/React/Layout -I../../react-native/React/Modules -I../../react-native/React/Profiler -I../../react-native/React/Views -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../node_modules/react-native/React -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../node_modules/react-native-fetch-blob/ios/RNFetchBlob -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../RNFetchBlobTest/node_modules/react-native -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/DerivedSources/x86_64 -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/DerivedSources -F< App Directory >/ios/build/Build/Products/Debug-iphonesimulator -MMD -MT dependencies -MF < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobFS.d --serialize-diagnostics < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobFS.dia -c < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m -o < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlobFS.o
In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:15:
< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:29:38: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
@Property (nonatomic) NSOutputStream * outStream;
^
< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:63:23: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]

• (void)write:(NSData *) chunk;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:64:36: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)writeEncodeChunk:(NSString *) chunk;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:65:32: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)readWithPath:(NSString *)path useEncoding:(NSString *)encoding bufferSize:(int) bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:65:61: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)readWithPath:(NSString _)path useEncoding:(NSString *)encoding bufferSize:(int) bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:18:28: error: existing instance variable 'callback' for property 'callback' with unsafe_unretained attribute must be __unsafe_unretained
  RCTResponseSenderBlock callback;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:31:46: note: property declared here
  @Property (nonatomic) RCTResponseSenderBlock callback;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:32:13: note: property synthesized here
  @synthesize callback;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:26:1: warning: autosynthesized property 'bridge' will use synthesized instance variable '_bridge', not existing instance variable 'bridge' [-Wobjc-autosynthesis-property-ivar-name-match]
  @implementation RNFetchBlobFS
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:32:35: note: property declared here
  @Property (nonatomic) RCTBridge * bridge;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:19:17: note: instance variable is declared here
  RCTBridge * bridge;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:26:1: warning: autosynthesized property 'streamId' will use synthesized instance variable 'streamId', not existing instance variable 'streamId' [-Wobjc-autosynthesis-property-ivar-name-match]
  @implementation RNFetchBlobFS
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:37:34: note: property declared here
  @Property (nonatomic) NSString * streamId;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:26:16: note: instance variable is declared here
  NSString * streamId;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:43:12: warning: incompatible pointer types returning 'NSMutableDictionary *' from a function with result type 'NSArray *' [-Wincompatible-pointer-types]
  return fileStreams;
  ^~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:105:65: warning: incompatible pointer types sending 'NSError *__autoreleasing *' to parameter of type 'NSError * _Nullable __autoreleasing * _Nullable'; remove & [-Wincompatible-pointer-types]
  NSDictionary * info = [fm attributesOfItemAtPath:path error:&error];
  ^~~~~~
  In module 'Foundation' imported from ../../react-native/React/Views/RCTAnimationType.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSFileManager.h:159:102: note: passing argument to parameter 'error' here
• (nullable NSDictionary<NSString *, id> )attributesOfItemAtPath:(NSString *)path error:(NSError *)error NS_AVAILABLE(10_5, 2_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:106:57: warning: format specifies type 'int' but the argument has type 'unsigned long long' [-Wformat]
  NSString * size = [NSString stringWithFormat:@"%d", [info fileSize]];
  ~~ ^~~~~~~~~~~~~~~
  %llu
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:109:111: warning: incompatible pointer types sending 'NSError __autoreleasing *' to parameter of type 'NSError * _Nullable __autoreleasing * _Nullable'; remove & [-Wincompatible-pointer-types]
  [[NSURL fileURLWithPath:path] getResourceValue:&lastModified forKey:NSURLContentModificationDateKey error:&error];
  ^~~~~~
  In module 'Foundation' imported from ../../react-native/React/Views/RCTAnimationType.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:163:119: note: passing argument to parameter 'error' here
• (BOOL)getResourceValue:(out id __nullable * __nonnull)value forKey:(NSString )key error:(out NSError * __nullable)error NS_AVAILABLE(10_6, 4_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:114:66: warning: format specifies type 'int' but the argument has type 'NSTimeInterval' (aka 'double') [-Wformat]
  @"lastModified" : [NSString stringWithFormat:@"%d", [lastModified timeIntervalSince1970]],
  ~~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  %f
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:99:26: warning: unused variable 'stat' [-Wunused-variable]
  NSMutableDictionary *stat = [[NSMutableDictionary alloc] init];
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:130:21: warning: local declaration of 'callback' hides instance variable [-Wshadow-ivar]
  self.callback = callback;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:154:21: warning: incompatible pointer types initializing 'NSMutableData *' with an expression of type 'NSData *' [-Wincompatible-pointer-types]
  NSMutableData * decodedData = [NSData alloc];
  ^ ~~~~~~~~~~~~~~
  In module 'ObjectiveC' imported from ../../react-native/React/Base/RCTJavaScriptExecutor.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/usr/include/objc/NSObject.h:68:1: note: class method 'alloc' is assumed to return an instance of its receiver type ('NSData *')
• (instancetype)alloc OBJC_SWIFT_UNAVAILABLE("use object initializers instead");
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:156:65: warning: incompatible pointer types sending 'NSString *' to parameter of type 'NSData * _Nonnull' [-Wincompatible-pointer-types]
  decodedData = [[NSData alloc] initWithBase64EncodedData:chunk options:0];
  ^~~~~
  In module 'Foundation' imported from ../../react-native/React/Views/RCTAnimationType.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSData.h:137:62: note: passing argument to parameter 'base64Data' here
• (nullable instancetype)initWithBase64EncodedData:(NSData *)base64Data options:(NSDataBase64DecodingOptions)options NS_AVAILABLE(10_9, 7_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:156:21: warning: incompatible pointer types assigning to 'NSMutableData *' from 'NSData * _Nullable' [-Wincompatible-pointer-types]
  decodedData = [[NSData alloc] initWithBase64EncodedData:chunk options:0];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In module 'Foundation' imported from ../../react-native/React/Views/RCTAnimationType.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSData.h:137:1: note: instance method 'initWithBase64EncodedData:options:' is assumed to return an instance of its receiver type ('NSData * _Nullable')
• (nullable instancetype)initWithBase64EncodedData:(NSData *)base64Data options:(NSDataBase64DecodingOptions)options NS_AVAILABLE(10_9, 7_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:159:21: warning: incompatible pointer types assigning to 'NSMutableData *' from 'NSData * _Nullable' [-Wincompatible-pointer-types]
  decodedData = [chunk dataUsingEncoding:NSUTF8StringEncoding];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:162:21: warning: incompatible pointer types assigning to 'NSMutableData *' from 'NSData * _Nullable' [-Wincompatible-pointer-types]
  decodedData = [chunk dataUsingEncoding:NSASCIIStringEncoding];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:201:63: warning: local declaration of 'path' hides instance variable [-Wshadow-ivar]
  self.inStream = [[NSInputStream alloc] initWithFileAtPath:path];
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:203:21: warning: local declaration of 'encoding' hides instance variable [-Wshadow-ivar]
  self.encoding = encoding;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:204:17: warning: local declaration of 'path' hides instance variable [-Wshadow-ivar]
  self.path = path;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:205:23: warning: local declaration of 'bufferSize' hides instance variable [-Wshadow-ivar]
  self.bufferSize = bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:289:39: warning: initializing 'uint8_t *' (aka 'unsigned char *') with an expression of type 'const void *' discards qualifiers [-Wincompatible-pointer-types-discards-qualifiers]
  uint8_t * byteFromArray = chunkData.bytes;
  ^ ~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:292:86: warning: values of type 'NSInteger' should not be used as format arguments; add an explicit cast to 'long' instead [-Wformat]
  asciiStr = [asciiStr stringByAppendingFormat:@"%d,", val];
  ~~ ^~~
  %ld (long)
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:294:85: warning: values of type 'NSInteger' should not be used as format arguments; add an explicit cast to 'long' instead [-Wformat]
  asciiStr = [asciiStr stringByAppendingFormat:@"%d", val];
  ~~ ^~~
  %ld (long)
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:289:39: warning: unused variable 'byteFromArray' [-Wunused-variable]
  uint8_t * byteFromArray = chunkData.bytes;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:249:12: warning: enumeration values 'NSStreamEventNone', 'NSStreamEventOpenCompleted', and 'NSStreamEventEndEncountered' not handled in switch [-Wswitch]
  switch(eventCode) {
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:270:19: warning: implicit conversion loses integer precision: 'NSInteger' (aka 'long') to 'unsigned int' [-Wshorten-64-to-32]
  len = [(NSInputStream *)stream read:buf maxLength:chunkSize];
  ~ ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:26:17: warning: method definition for 'openWithDestination' not found [-Wincomplete-implementation]
  @implementation RNFetchBlobFS
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:58:1: note: method 'openWithDestination' declared here
• (void) openWithDestination;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:26:17: warning: method definition for 'openWithId' not found [-Wincomplete-implementation]
  @implementation RNFetchBlobFS
  ^
  In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.m:15:
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:59:1: note: method 'openWithId' declared here
• (void) openWithId;
  ^
  31 warnings and 1 error generated.

CompileC < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlob-9A9FEEDF0B0FF149.o RNFetchBlob/RNFetchBlob.m normal x86_64 objective-c com.apple.compilers.llvm.clang.1_0.compiler
cd < App Directory >/node_modules/react-native-fetch-blob/ios
export LANG=en_US.US-ASCII
export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/Library/Frameworks/Python.framework/Versions/3.5/bin:/usr/local/bin:< User Directory >/Library/Android/sdk/tools:< User Directory >/Library/Android/sdk/platform-tools:< User Directory >/.nvm/versions/node/v5.10.1/bin:/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin"
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang -x objective-c -arch x86_64 -fmessage-length=0 -fdiagnostics-show-note-include-stack -fmacro-backtrace-limit=0 -std=gnu99 -fobjc-arc -fmodules -gmodules -fmodules-cache-path=< App Directory >/ios/build/ModuleCache -fmodules-prune-interval=86400 -fmodules-prune-after=345600 -fbuild-session-file=< App Directory >/ios/build/ModuleCache/Session.modulevalidation -fmodules-validate-once-per-build-session -Wnon-modular-include-in-framework-module -Werror=non-modular-include-in-framework-module -Wno-trigraphs -fpascal-strings -O0 -fno-common -Wno-missing-field-initializers -Wno-missing-prototypes -Werror=return-type -Wunreachable-code -Wno-implicit-atomic-properties -Werror=deprecated-objc-isa-usage -Werror=objc-root-class -Wno-arc-repeated-use-of-weak -Wduplicate-method-match -Wno-missing-braces -Wparentheses -Wswitch -Wunused-function -Wno-unused-label -Wno-unused-parameter -Wunused-variable -Wunused-value -Wempty-body -Wconditional-uninitialized -Wno-unknown-pragmas -Wno-shadow -Wno-four-char-constants -Wno-conversion -Wconstant-conversion -Wint-conversion -Wbool-conversion -Wenum-conversion -Wshorten-64-to-32 -Wpointer-sign -Wno-newline-eof -Wno-selector -Wno-strict-selector-match -Wundeclared-selector -Wno-deprecated-implementations -DDEBUG=1 -DOBJC_OLD_DISPATCH_PROTOTYPES=0 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk -fasm-blocks -fstrict-aliasing -Wprotocol -Wdeprecated-declarations -mios-simulator-version-min=9.3 -g -Wno-sign-conversion -fobjc-abi-version=2 -fobjc-legacy-dispatch -iquote < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-generated-files.hmap -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-own-target-headers.hmap -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-all-target-headers.hmap -iquote < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/RNFetchBlob-project-headers.hmap -I< App Directory >/ios/build/Build/Products/Debug-iphonesimulator/include -I< App Directory >/node_modules/react-native-fetch-blob/ios/Libraries -I< App Directory >/node_modules/react-native-fetch-blob/ios/../node_modules/react-native/React -I../../React -I../../React/dist -I../../React/lib -I../../react-native/React -I../../react-native/React/Base -I../../react-native/React/Executors -I../../react-native/React/Layout -I../../react-native/React/Modules -I../../react-native/React/Profiler -I../../react-native/React/Views -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../node_modules/react-native/React -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../node_modules/react-native-fetch-blob/ios/RNFetchBlob -I< App Directory >/node_modules/react-native-fetch-blob/ios/../../RNFetchBlobTest/node_modules/react-native -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/DerivedSources/x86_64 -I< App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/DerivedSources -F< App Directory >/ios/build/Build/Products/Debug-iphonesimulator -MMD -MT dependencies -MF < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlob-9A9FEEDF0B0FF149.d --serialize-diagnostics < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlob-9A9FEEDF0B0FF149.dia -c < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m -o < App Directory >/ios/build/Build/Intermediates/RNFetchBlob.build/Debug-iphonesimulator/RNFetchBlob.build/Objects-normal/x86_64/RNFetchBlob-9A9FEEDF0B0FF149.o
In file included from < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:12:
< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:29:38: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
@Property (nonatomic) NSOutputStream * outStream;
^
< App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:63:23: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]

• (void)write:(NSData *) chunk;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:64:36: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)writeEncodeChunk:(NSString *) chunk;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:65:32: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)readWithPath:(NSString *)path useEncoding:(NSString *)encoding bufferSize:(int) bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlobFS.h:65:61: warning: pointer is missing a nullability type specifier (_Nonnull, _Nullable, or _Null_unspecified) [-Wnullability-completeness]
• (void)readWithPath:(NSString *)path useEncoding:(NSString *)encoding bufferSize:(int) bufferSize;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:64:34: warning: 'stringByAddingPercentEscapesUsingEncoding:' is deprecated: first deprecated in iOS 9.0 - Use -stringByAddingPercentEncodingWithAllowedCharacters: instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent since each URL component or subcomponent has different rules for what characters are valid. [-Wdeprecated-declarations]
  NSString * encodedUrl = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
  ^
  In module 'Foundation' imported from ../../react-native/React/Base/RCTBridgeModule.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:528:1: note: 'stringByAddingPercentEscapesUsingEncoding:' has been explicitly marked deprecated here
• (nullable NSString *)stringByAddingPercentEscapesUsingEncoding:(NSStringEncoding)enc NS_DEPRECATED(10_0, 10_11, 2_0, 9_0, "Use -stringByAddingPercentEncodingWithAllowedCharacters: instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent since each URL component or subcomponent has different rules for what characters are valid.");
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:77:72: warning: format specifies type 'int' but the argument has type 'NSNumber *' [-Wformat]
  NSString * boundary = [NSString stringWithFormat:@"RNFetchBlob%d", timeStampObj];
  ~~ ^~~~~~~~~~~~
  %@
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:88:70: warning: comparison of distinct pointer types ('NSString *' and 'NSNull * _Nonnull') [-Wcompare-distinct-pointer-types]
  if([field valueForKey:@"filename"] == nil || content == [NSNull null]) {
  ~~~~~~~ ^ ~~~~~~~~~~~~~
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:100:38: warning: incompatible pointer types assigning to 'NSMutableData *' from 'NSData * _Nullable' [-Wincompatible-pointer-types]
  blobData = [[NSData alloc] initWithContentsOfFile:orgPath];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In module 'Foundation' imported from ../../react-native/React/Base/RCTBridgeModule.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSData.h:118:1: note: instance method 'initWithContentsOfFile:' is assumed to return an instance of its receiver type ('NSData * _Nullable')
• (nullable instancetype)initWithContentsOfFile:(NSString *)path;
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:103:38: warning: incompatible pointer types assigning to 'NSMutableData *' from 'NSData * _Nullable' [-Wincompatible-pointer-types]
  blobData = [[NSData alloc] initWithBase64EncodedString:content options:0];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In module 'Foundation' imported from ../../react-native/React/Base/RCTBridgeModule.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSData.h:129:1: note: instance method 'initWithBase64EncodedString:options:' is assumed to return an instance of its receiver type ('NSData * _Nullable')
• (nullable instancetype)initWithBase64EncodedString:(NSString *)base64String options:(NSDataBase64DecodingOptions)options NS_AVAILABLE(10_9, 7_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:119:65: warning: values of type 'NSUInteger' should not be used as format arguments; add an explicit cast to 'unsigned long' instead [-Wformat]
  [mheaders setValue:[NSString stringWithFormat:@"%d",[postData length]] forKey:@"Content-Length"];
  ~~ ^~~~~~~~~~~~~~~~~
  %lu (unsigned long)
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:120:75: warning: data argument not used by format string [-Wformat-extra-args]
  [mheaders setValue:[NSString stringWithFormat:@"100-continue",[postData length]] forKey:@"Expect"];
  ~~~~~~~~~~~~~~~ ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:144:34: warning: 'stringByAddingPercentEscapesUsingEncoding:' is deprecated: first deprecated in iOS 9.0 - Use -stringByAddingPercentEncodingWithAllowedCharacters: instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent since each URL component or subcomponent has different rules for what characters are valid. [-Wdeprecated-declarations]
  NSString * encodedUrl = [url stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
  ^
  In module 'Foundation' imported from ../../react-native/React/Base/RCTBridgeModule.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSURL.h:528:1: note: 'stringByAddingPercentEscapesUsingEncoding:' has been explicitly marked deprecated here
• (nullable NSString *)stringByAddingPercentEscapesUsingEncoding:(NSStringEncoding)enc NS_DEPRECATED(10_0, 10_11, 2_0, 9_0, "Use -stringByAddingPercentEncodingWithAllowedCharacters: instead, which always uses the recommended UTF-8 encoding, and which encodes for a specific URL component or subcomponent since each URL component or subcomponent has different rules for what characters are valid.");
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:166:30: warning: incompatible pointer types assigning to 'NSMutableData *' from 'NSData * _Nullable' [-Wincompatible-pointer-types]
  blobData = [[NSData alloc] initWithBase64EncodedString:body options:0];
  ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  In module 'Foundation' imported from ../../react-native/React/Base/RCTBridgeModule.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSData.h:129:1: note: instance method 'initWithBase64EncodedString:options:' is assumed to return an instance of its receiver type ('NSData * _Nullable')
• (nullable instancetype)initWithBase64EncodedString:(NSString *)base64String options:(NSDataBase64DecodingOptions)options NS_AVAILABLE(10_9, 7_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:193:65: warning: incompatible pointer types sending 'NSString *' to parameter of type 'NSData * _Nonnull' [-Wincompatible-pointer-types]
  fileContent = [[NSData alloc] initWithBase64EncodedData:data options:0];
  ^~~~
  In module 'Foundation' imported from ../../react-native/React/Base/RCTBridgeModule.h:10:
  /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator9.2.sdk/System/Library/Frameworks/Foundation.framework/Headers/NSData.h:137:62: note: passing argument to parameter 'base64Data' here
• (nullable instancetype)initWithBase64EncodedData:(NSData *)base64Data options:(NSDataBase64DecodingOptions)options NS_AVAILABLE(10_9, 7_0);
  ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:203:84: warning: more '%' conversions than data arguments [-Wformat]
  callback(@[[NSString stringWithFormat:@"failed to create new file at path %@ please ensure the folder exists"]]);
  ~^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:223:84: warning: more '%' conversions than data arguments [-Wformat]
  callback(@[[NSString stringWithFormat:@"failed to create new file at path %@ please ensure the folder exists"]]);
  ~^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:238:19: warning: comparison between pointer and integer ('int' and 'void *')
  if(bufferSize == nil) {

  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:286:16: warning: unused variable 'tmpPath' [-Wunused-variable]
  NSString \* tmpPath = nil;
          ^
  < App Directory >/node_modules/react-native-fetch-blob/ios/RNFetchBlob/RNFetchBlob.m:296:16: warning: unused variable 'tmpPath' [-Wunused-variable]
  NSString \* tmpPath = nil;
          ^
  
  

=== BUILD TARGET RCTGeolocation OF PROJECT RCTGeolocation WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET React OF PROJECT React WITH CONFIGURATION Debug ===
Check dependencies

=== BUILD TARGET RCTSettings OF PROJECT RCTSettings WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET IQKeyboardManager OF PROJECT Pods WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTLinking OF PROJECT RCTLinking WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTNetwork OF PROJECT RCTNetwork WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET Pods-App OF PROJECT Pods WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTActionSheet OF PROJECT RCTActionSheet WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTText OF PROJECT RCTText WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTPushNotification OF PROJECT RCTPushNotification WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTVibration OF PROJECT RCTVibration WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET RCTWebSocket OF PROJECT RCTWebSocket WITH CONFIGURATION Debug ===

Check dependencies

=== BUILD TARGET Pods-AppTests OF PROJECT Pods WITH CONFIGURATION Debug ===

Check dependencies

Installing build/Build/Products/Debug-iphonesimulator/App.app
Launching com.Company.App
com.Company.App: 2089
`

[pgonzalez]

react-native-cli: 0.2.0
react-native: 0.27.2

[wkh237]

Thanks @pgonzalez , this is helpful ! I'm think I know where the problem is : )

[wkh237]

@pgonzalez , what your the version of your Xcode? It might be a problem with Xcode version, please check #31 .

[wkh237]

I've published a new version v0.5.6 which removed these problematic code, I think it should be able to solve this problem: )