[Bug] Spammy error message from Firebase Editor tool when trying to build Xcode project on Windows

[calebvetter]

I'm using Windows to develop a mobile game for both iOS and Android. For iOS, I export to an Xcode project and build it on my less-powerful Mac (which is only for builds as developing on this Mac is not an option).

I'm using Firebase Cloud Messaging for Android, but not for iOS.

When switching to iOS in the Editor, I repeatedly get the error "Firebase iOS builds are not supported on Windows. Please build on a OSX machine instead."

I see no option to disable or suppress this error, and no configuration to prevent checking for iOS platform build type. This configuration is my feature request.

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[chkuang-g]

@calebvetter

We definitely did not consider about this use-case: to build Xcode project on Windows.

This annoying log is from our Firebase editor tool, specifically XcodeProjectPatcher.cs

    // Verify that the build environment *really* supports iOS.
    private static void CheckBuildEnvironment() {
        // If iOS is the selected build target but we're not on a OSX machine
        // report an error as pod installation will fail among other things.
        if (EditorUserBuildSettings.activeBuildTarget == BuildTarget.iOS &&
            Application.platform == RuntimePlatform.WindowsEditor) {
            Debug.LogError(DocRef.IOSNotSupportedOnWindows);
        }
    }

Perhaps we can remove this error log.

But I think the right thing to do is to make sure that everything works fine when building Xcode project on Windows machine. I do have some concerns since EDM4U requires Cocoapods to generate xcworkspace. And installing Cocoapods on Windows is not a very pleasant experience. Could you tell us how you make Cocoapods work on Windows? Or did you actually installed it?

This is legitimately annoying. I'll mark it as a bug.

[calebvetter]

Actually, I'm not going to be using Firebase for iOS notifications since I have that working just fine without it. I've imported the Firebase package to manage push notifications on Android only.

So I'd recommend having an option for the user to select which platforms (iOS or Android) they'd like Firebase to target, and only show errors/warnings for the selected platforms.

Or perhaps base the platform targeting on whether or not the respective config files are present in the Assets folder (google-services.json for Android, and GoogleService-Info.plist for iOS).

In my case, I only have the google-services.json file. The Firebase panel in Unity recognizes this, yet still shows the error message in the console.

[vimanyu]

Hi @calebvetter,
Thanks for the info. Looks like you are using FCM just for Android but are you able to export an XCode project from Unity in Windows without much trouble? As @chkuang-g mentioned, EDM4u requires cocoapods to create the xcworkspace. The warning exists mainly due to the difficulty in doing this exact step from Windows.

I haven't tried it but wondering if you could suppress the warning by unchecking platforms in Unity's Inspector window for Firebase DLLs (Assets/Firebase/Editor and Plugins/iOS).