I had a project initially created in XCode 3 and used it successfully in XCode 4 Developer Preview version.
After upgrading to XCode 4 release, any time I try to run the project on the device, I get a "Argument Invalid" dialog. Except it doesn't tell me what argument.
How does one figure out what is wrong and why I can't run the app on my device any more?
Base SDK is set to 4.3 Deployment target set to: iOS 4.2