Xcode 4 - Changes in xib not reflecting on runtime

I have just upgraded to Xcode 4. When I am making any king of changes in an xib file this doesn't show on my simulator. I have even removed to xib from开发者_高级运维 the project or quit Xcode - but still nothing - it runs as before.

It seems like the files are not compiled anymore.

Have you faced this kind of problem?

If you're not sure if its compiling a file, just do a clean (default is command+K i think) and build again

I faced this kind of problem after localizing my xib files (Xcode 4.3.3). Doing "Clean" and "Build" did not help. I had to remove the App from my iPad and from the simulator to get the new versions running.