Application failed codesign verification

"Ap开发者_开发技巧plication failed codesign verification. The signature was invalid, or it was not signed with an Apple submission certificate. (-19011)”

I get this error when trying to upload my app through the Application Loader.

Any ideas whats wrong and how I can sort it?

Adam

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You can check your configuration in this iPhone development forum topic

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I've seen this error pop-up due to XCode 4.x incorrectly handling schemes whose names contain spaces