ios - AVAudioplayer not working after project rebuild -

i have audio player plays local files.

audioplayer = [[avaudioplayer alloc] initwithcontentsofurl:url error:&error] 

it works fine. if click xcode run button rebuild app, player not working. gives me error

error domain=nsosstatuserrordomain code=2003334207 "the operation couldn't completed. (nsosstatus error 2003334207.)"

the url absolutely same. checked file. says , not corrupt or anything.

edit:

[[nsfilemanager defaultmanager] fileexistsatpath:url.path] 

returns false if file there means don't have access it?

likely, ios8, path have saved won't valid across launches.

the solution save filename , not complete path, , recreate url or complete path, getting path documents (or tmp) folder , appending filename it.