How to fix Failed to fetch default token error?

Question

I am getting this error after installing in iphone.

Answer 1

Have been stuck for a while with this, for me the reason why I could not make it work was that I was using a secondary firebase app. It looks like a bug to me. As a workaround, I had to initialize the additional app before the default app (in AppDelegate.m):

//initialise the secondary app, for example:
NSString *logFirebaseOptionFile = [[NSBundle mainBundle] pathForResource:@"GoogleService-LOG-Info" ofType:@"plist"];
FIROptions *firebaseOptions = [[FIROptions alloc] initWithContentsOfFile:logFirebaseOptionFile];
NSString *logAppName = @"mybands_logs";
[FIRApp configureWithName:logAppName options:firebaseOptions];

//then the default app for FCM to work
[FIRApp configure];