How to fix Failed to fetch default token error?

问题:

I am getting this error after installing in iphone.

回答1:

Using Xcode8, the fix was to simply enable Keychain Sharing in Capabilities

Open the app.xcworkspace file, select Target > Capabilities > Enable 'Keychain sharing'

回答2:

Possible reasons for this issue:

1. Device date was not set to the current date.
2. Bundle ID is not same that one you set in GoogleService-Info.
3. .p12 certificate uploaded on Firebase Console is not correct.

回答3:

Make sure that:

• Bundle ID is the same that one you set in GoogleService-Info
• Code signing params (Target => Build Settings => Code signing) are corrects and match with p12 cert file you've set in Firebase.

Also, you have to follow those tutos:

• Notification: https://firebase.google.com/docs/notifications/ios/console-audience
• Configuration: https://firebase.google.com/docs/ios/setup

And don't forget to ask permission to user simply to add that in your app (In AppDelegate file, or in other ViewController for example):

let notificationTypes: UIUserNotificationType = [UIUserNotificationType.Alert, UIUserNotificationType.Badge, UIUserNotificationType.Sound]
let pushNotificationSettings = UIUserNotificationSettings(forTypes: notificationTypes, categories: nil)
application.registerUserNotificationSettings(pushNotificationSettings)
application.registerForRemoteNotifications()

回答4:

i have same issue failed to fetch default token error domain=com.firebase.iid code=501 today spend 4 hours on this and finally got issue and thats my iphone time is wrong (manually i set diff time for testing)

so once check time when you have request firebase token.

回答5:

Make sure you uploaded Development APNs certificate to Firebase. Go to Settings of your project => CLOUD MESSAGING tab.

回答6:

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];

回答7:

Well, I also got this same problem. Can't fix it using solutions introduced by other posts. It seems that the communication between your client App FCM SDK and the FCM server goes wrong.

My fix was I loginned to my VPN (mainland China can't use google service if you don't do this). Then I could get the firebase token.

Besides, if you failed to get the token. Next time you try to access the firebase token using [[FIRInstanceID instanceID] token]. Firebase SDK will try to fetch the token again if it's still nil, and if this attempt succeeds, the token refresh notification (kFIRInstanceIDTokenRefreshNotification) will be posted.

回答8:

You have to fix this line before handling this error:

Failed to fetch default token Error Domain=com.firebase.iid Code=0 "(null)"

Here is an answer to fix this issue