问题
I have used background fetch in pre ios8 without a problem. But in ios8 when i simulate background fetch on my phone i first get an error that i do not have permission to play sound therefore i do not get any local notifications. Then upon opening the app, the app crashes and i get this wierd error:
Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'this request has been neutered - you can't call -sendResponse: twice nor after encoding it'
回答1:
It is related to this iOS 8 NSInternalInconsistencyException
Look for places where you call completion handlers you get from methods like this:
- (void)application:(UIApplication *)application performFetchWithCompletionHandler:(void (^)(UIBackgroundFetchResult))completionHandler
来源：https://stackoverflow.com/questions/26038925/ios8-background-fetch-issue