Info.plist missing NSPrincipalClass

I'm following NeHe's OpenGL tutorials code for XCode/Cocoa and I made a Command-Line project and am using the source provided.

But it said Info.plist was missing or NSPrincipalClass wasn't specified. I tried using an Info.plist from one of my iphone projects.

I tried renaming it to battlecompworlded-Info.plist (my project name) with NSPrincipalClass set to NSApplication. But still the same error.

What do I do?

I'm using a Cocoa application now. Problem solved.