Xcode4 - Build for Archiving greyed out [duplicate]

This question already has answers here: Closed 10 years ago.

Possible Duplicate:

Xcode 4 - “Archive” is greyed out?

I want to submit my iOS App via Xcode 4. The problem is that I cant do the Build for Archiving. Its Inactive and Gray (the Menu Item Product->Build For->Build For Archiving) and i dont know why.

Anybody an Ide开发者_C百科a?

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In the scheme drop down you have to choose an actual device, not one of the simulators.