No mainwindow.xib in Xcode 4 Confused how to have my TabBarController use a NavigationController?

As someone has mention you can add a xib file an configure the app to use it. Here is the code version in case you decide to go this route it's always best to know either way.

You can add a MainWindow. Xib file manually (New File -> Empty interface builder document) and then in your apps Info. Plist you can add a key called "Main nib file base name" and set it's value to "MainWindow".

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