ios - File deleted from App Bundle in Xcode still readable -

ios - File deleted from App Bundle in Xcode still readable -

i have bunch of sound files in app bundle, reading using

[[nsbundle mainbundle] pathforresource:aaa oftype:m4a]

i found if delete aaa.m4a moving trash app can read , play sound file (using avaudioplayer). checked search in xcode project's directory, doesn't exist. checked build phrases - re-create bundle resources, aaa.m4a not there.

anybody has ideas why?

file kept somewhere during build & run process.

in xcode go organizer > projects > project > remove derived data on device delete app

run on device , should fine.

ios xcode nsbundle