Can someone please help??

I’ve been stuck on this ever since I’ve upgraded to pro, which was all the way back in July. I’m having problems with my Keys. I’ve gone over several tutorials, deleted all my keys and started over, and repeated that process several times. All my keys say everything is valid and I gave them all permissions and such. I can build for testing with the provisioning profile but I’m stuck on distribution. I get this message:
warning: Application failed codesign verification. The signature was invalid, contains disallowed entitlements, or it was not signed with an iPhone Distribution Certificate. (-19011)
failed to extract requirements data: 1
/Users/Desktop/app.app: invalid signature (code or signature have been modified)
failed to extract entitlements: 1
AssertMacros: entitlements_requested, At least need an application-identifier entitlements file: codesign_wrapper.c, line: 879

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warning: Unable to extract codesigning entitlements from your application. Please make sure app is a valid Mach executable that’s properly codesigned. (-19050)
/Users/Desktop/app.app/app: invalid signature (code or signature have been modified)

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    [import]uid: 114389 topic_id: 31743 reply_id: 331743[/import]