ios - Fatal Exception: NSInternalInconsistencyException this request has been neutered - you can't call -sendResponse: twice nor after encoding it -

ios - Fatal Exception: NSInternalInconsistencyException this request has been neutered - you can't call -sendResponse: twice nor after encoding it -

i have reviewed posts others seem have similar issue , not same situation. none of posted solutions issues appear have.

i getting exception in crashlytics log ever since ios 8 released. have reviewed background fetch handler , had other developers review sanity check. not appear calling completionhandler more 1 time per background fetch call.

as precaution, set in boolean maintain code perchance beingness re-entrant , did not seem alter - not thought would.

i have been unsuccessful in attempts recreate issue on devices or in simulator.

any help appreciated!

ios background ios8 ios8.1