Could not load NIB in bundle: 'NSBundle'

Question

What is the error listed below?

2011-02-23 21:24:12.218 Success[7238:207] * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'Could not load NIB in bundle: 'NSBundle </Users/jimkillen12/Library/Application Support/iPhone Simulator/4.2/Applications/BAA5E0E7-AF12-4301-A4F8-1B9797C9E82D/Success.app> (loaded)' with name 'MainWindow-iPad''

Answer 1

One of your NIB file is missing from project, add the required NIB file:

In Build Phases

1. expand Copy Bundle Resources
2. click + at bottom
3. add the required NIB file.

Clean your build by Shift+Cmd+K, then run.

P.S. Also make sure to use exact spelling of NIB file while calling initWithNibName:@"ViewNameController"

Probably, you have named your NIB in a call by lowercase letters or you may have also included extension .xib which is not required.

Answer 2

Probably, you have named your NIB in a call by lowercase letters. The simulator works fine in this case, but an iPhone device will return an error during runtime.

For example,

DetailViewController *detailViewController = [[DetailViewController alloc]             initWithNibName:@"detailViewController" bundle:nil]; 

will fail. You need to change to:

DetailViewController *detailViewController = [[DetailViewController alloc]             initWithNibName:@"DetailViewController" bundle:nil];