ipad simulator error after distribution

I developed a test app and I tried to use into the simulator.. all works fine! After, following the document "iPhone_developer_program_user_guide" I made the distribution version of my app (and xcode built it without problems). After this, I couldn't try the distribution 'cause I don't have iPad, but when I sele开发者_如何学Gocted the debug type and relaunched to the simulator, the simulator starts, become all black and xcode give this error: error http://www.ghiboz.info/shots/ed342dc8.png I sent the .app and the .mobileprovision to my mate that have the iPad (configured with the udid) and retrieve an unknown error (0xE8008001)...

thanks in advance!

solved, simply remove the app from the simulator.. xcode is not able to do this....