error TS2665: Invalid module name in augmentation in jest/async-storage-mock

[fqborges]

What happened?

Just upgraded to 1.16.0, my typescript builds started to error with:

node_modules/@react-native-async-storage/async-storage/lib/typescript/index.d.ts:6:16 - error TS2665: Invalid module name in augmentation. Module '@react-native-async-storage/async-storage/jest/async-storage-mock' resolves to an untyped module at '[...]/node_modules/@react-native-async-storage/async-storage/jest/async-storage-mock.js', which cannot be augmented.

6 declare module '@react-native-async-storage/async-storage/jest/async-storage-mock' {

Version

1.16.0

What platforms are you seeing this issue on?

• Android
• iOS
• macOS
• Windows
• web

System Information

System:
    OS: Windows 10 10.0.22000
    CPU: (8) x64 AMD Ryzen 7 3700U with Radeon Vega Mobile Gfx
    Memory: 6.79 GB / 17.88 GB
  Binaries:
    Node: 14.17.1 - ~\AppData\Local\Temp\yarn--1644419667475-0.14216515503697358\node.CMD
    Yarn: 1.22.5 - ~\AppData\Local\Temp\yarn--1644419667475-0.14216515503697358\yarn.CMD
    npm: 6.14.13 - C:\Program Files\nodejs\npm.CMD
    Watchman: Not Found
  SDKs:
    Android SDK: Not Found
    Windows SDK: Not Found
  IDEs:
    Android Studio: Version     2020.3.0.0 AI-203.7717.56.2031.7935034
    Visual Studio: 16.11.32002.261 (Visual Studio Community 2019)
  Languages:
    Java: 1.8.0_282 - C:\Program Files\AdoptOpenJDK\jdk-8.0.282.8-hotspot\bin\javac.EXE
  npmPackages:
    @react-native-community/cli: Not Found
    react: 17.0.2 => 17.0.2
    react-native: 0.66.4 => 0.66.4
    react-native-windows: Not Found
  npmGlobalPackages:
    *react-native*: Not Found

Steps to Reproduce

yarn install "@react-native-async-storage/async-storage@1.16.0
yarn tsc

[tido64]

Hi @fqborges, do you know which version of TypeScript you're using? And do you have a repo where this reproduces? It's odd that we didn't see this during testing.

Edit: FWIW, I imported 1.16 in a project of ours and don't see this error message. We're using TypeScript 4.5.5.

[fqborges]

Wow, I cant reproduce in a fresh react-native app. I will try again later.

I will extract a mre from my private repo.

which version of TypeScript you're using?
typescript@4.5.5

Thanks.

[chintannp]

I am getting the same error.

[tststs]

same issue here since upgrading from ^1.15 to ^1.16.

Could not find a declaration file for module '@react-native-async-storage/async-storage/jest/async-storage-mock'. '/.../node_modules/@react-native-async-storage/async-storage/jest/async-storage-mock.js' implicitly has an 'any' type.
  If the '@react-native-async-storage/async-storage' package actually exposes this module, try adding a new declaration (.d.ts) file containing `declare module '@react-native-async-storage/async-storage/jest/async-storage-mock';`

[JimTeva]

I confirm, the error appears with 1.16.
Here is my setup:

• react native 0.65.1
• typescript 4.5.5
  If I use @react-native-async-storage/async-storage@1.15.17, there is no error.

[tido64]

Do you have a public repo where this occurs? As I mentioned above, I cannot repro this error.

Edit: Also, please make sure you retry after cleaning out caches and the like. OP was also unable to repro in a fresh RN app.

[Elias-Graf]

I had this error happen on version 15, and upgraded to 16 hoping it will fix it. It did not. I'll see if I can figure out the issue.

[Elias-Graf]

I just noticed that I don't have the issue that the author has. BUT the issue that the author has seems to come from trying to solves this.

I'm getting:

error TS7016: Could not find a declaration file for module '@react-native-async-storage/async-storage/jest/async-storage-mock'. '/var/app/node_modules/@react-native-async-storage/async-storage/jest/async-storage-mock.js' implicitly has an 'any' type.
Try npm i --save-dev @types/react-native-async-storage__async-storage if it exists or add a new declaration (.d.ts) file containing declare module '@react-native-async-storage/async-storage/jest/async-storage-mock';

If I then add declare module '@react-native-async-storage/async-storage/jest/async-storage-mock'; in my code, I get:

error TS2665: Invalid module name in augmentation. Module '@react-native-async-storage/async-storage/jest/async-storage-mock' resolves to an untyped module at '/var/app/node_modules/@react-native-async-storage/async-storage/jest/async-storage-mock.js', which cannot be augmented.

So... the original issue probably isn't the root cause.

It's also really weird, I found the initial import to sometimes work, and suddenly stop (in new project). Or it could be a weird caching thing, from VSCode or whatever. But the following docker container reproduces my issue, every time (at least for me).

Ah, and it is noteworthy to say, that I do not put the mock into the jest setup file, like stated here: https://react-native-async-storage.github.io/async-storage/docs/advanced/jest/#with-jest-setup-file. I just import it in the tests that require the mock.

Instructions

Create a random directory and place the following files inside it:

index.ts

import mockAsyncStorage from '@react-native-async-storage/async-storage/jest/async-storage-mock';

function test() {
  mockAsyncStorage();
}

tsconfig.json

{
  "compilerOptions": {
    "target": "es2016",
    "module": "commonjs",
    "esModuleInterop": true,
    "forceConsistentCasingInFileNames": true,
    "strict": true,
    "skipLibCheck": true
  }
}

package.json

{
  "name": "react-native-async-storage-mock-test",
  "version": "1.0.0",
  "main": "index.js",
  "scripts": {
    "test": "echo \"Error: no test specified\" && exit 1"
  },
  "keywords": [],
  "author": "",
  "license": "ISC",
  "dependencies": {
    "@react-native-async-storage/async-storage": "^1.16.1",
    "typescript": "^4.5.5"
  },
  "description": ""
}

Dockerfile

FROM node:16-alpine

WORKDIR /var/app

COPY package.json tsconfig.json index.ts ./

RUN npm install

CMD ["npx", "tsc", "--noEmit"]

Now just build and run that container. (inside the created directory: docker build ., after that ran there should be an id at the bottom (successfully built <id>), docker run <id by the previous command>).

[danilobuerger]

Using

diff --git a/node_modules/@react-native-async-storage/async-storage/lib/typescript/index.d.ts b/node_modules/@react-native-async-storage/async-storage/lib/typescript/index.d.ts
index 82f4649..4847a4a 100644
--- a/node_modules/@react-native-async-storage/async-storage/lib/typescript/index.d.ts
+++ b/node_modules/@react-native-async-storage/async-storage/lib/typescript/index.d.ts
@@ -3,8 +3,3 @@ import type { AsyncStorageHook, AsyncStorageStatic } from './types';
 export { useAsyncStorage } from './hooks';
 export type { AsyncStorageStatic } from './types';
 export default AsyncStorage;
-declare module '@react-native-async-storage/async-storage/jest/async-storage-mock' {
-    export function useAsyncStorage(key: string): AsyncStorageHook;
-    const AsyncStorageLib: AsyncStorageStatic;
-    export default AsyncStorageLib;
-}

is my workaround until this is fixed

[github-actions]

This issue has been marked as stale due to inactivity. Please respond or otherwise resolve the issue within 7 days or it will be closed.

[SimenB]

Expo 45 is out which uses this version, so just hit it.

If people are having issues reproducing, make sure skipLibCheck is false