NSString -initWithContentOfFile error - Objective-C -

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i'm trying load nsstring, content of file named names.txt, in directory of project. this, have following code :

    nserror *error = nil;     nsstring *names = [[nsstring alloc] initwithcontentsoffile:[[nsbundle mainbundle] pathforresource:@"names" oftype:@"txt"] encoding:nsasciistringencoding error:&error];     if (error != nil) {         [nsexception raise:@"error reading file :" format:@"%@",error];     }

and i'm getting *** terminating app due uncaught exception 'error reading file :', reason: 'error domain=nscocoaerrordomain code=258 "the file name invalid."'. couldn't find other cases that. what's wrong code?

ensure names.txt file included under copy bundle resources region of xcode build phases window target.

in debugger, test valid bundle file with:

  ...   nsstring *file  = [[nsbundle mainbundle] pathforresource:@"names" oftype:@"txt"];   /* file ought not nil. nsassert (file) */   nsstring *names = [[nsstring alloc] initwithcontentsoffile: file                                                     encoding: nsasciistringencoding                                                        error: &error];

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