Can't endBackgroundTask: no background task exists with identifier, or it may have already been ended

Question

I am using background task to run the timer in the background to update the user\'s location. It\'s declared as:

UIBackgroundTaskIdentifier bgTask;
         


        

Answer 1

Are you using location update in the background?

If yes, add the below code at the time of getting location authorization from the user - Apple changed the default for allowsBackgroundLocationUpdates to NO from iOS 9 onwards.

if ([[[UIDevice currentDevice] systemVersion] floatValue] >= 9) {
    locationManager.allowsBackgroundLocationUpdates = YES;
}

Please make sure that you activated the 'Location updates' for background modes under your project 'Signing & Capabilities'. Otherwise it will crash.