Google sign in causes app to crash on iOS

[alvinchan88]

Google sign in works on Android but crashes the app when clicking on Google sign in button. App just closes. I've taken your Udemy course and I've set up Google sign in on iOS without any issues following your course material. Tried a whole bunch of different things but can't seem to figure it out. Any help would be appreciated. Here is the error log:

Performing hot restart...
Syncing files to device iPhone 11...
Restarted application in 1,369ms.
Lost connection to device.
*** First throw call stack:
(
0 CoreFoundation 0x00007fff23e3cf0e __exceptionPreprocess + 350
1 libobjc.A.dylib 0x00007fff50ba89b2 objc_exception_throw + 48
2 CoreFoundation 0x00007fff23e3cd4c +[NSException raise:format:] + 188
3 Runner 0x00000001039f3c92 -[GIDSignIn signInWithOptions:] + 276
4 Runner 0x00000001039f35c7 -[GIDSignIn signIn] + 64
5 Runner 0x0000000103a0d5d8 -[FLTGoogleSignInPlugin handleMethodCall:result:] + 2392
6 Flutter 0x00000001040749df __45-[FlutterMethodChannel setMethodCallHandler:]_block_invoke + 104
7 Flutter 0x0000000104003622 _ZNK7flutt<…>

[alvinchan88]

After trying to solve this for 2 days I finally found something on Github that finally helped!

googlesamples/google-services#81

The issue is that REVERSED_CLIENT_ID in GoogleService-Info.plist needs to copied into the URL_Schemes in Info.plist.