iPhone Codesign object file format invalid or unsuitable

I accidentally deleted my target in xcode.

so i created a new one with the exact same name. in the target settings i again selected the proper codesigning identity

but now i can’t compile for the device anymore. as soon as i want to build, i get:

CodeSign build/Release-iphoneos/myApp.app ....somestuff.... /Volumes/XCodeProj/myApp/build/Release-iphoneos/myApp.app: object file format invalid or unsuitable Connad /usr/bin/codesign failed with exit code 1 1 I already tried to clean targets. what could cause this problem and how to solve it? 

May also be an issue with your install. Symlinking to the latest codesign_allocate cleared up the issue in my case:

sudo mv /usr/bin/codesign_allocate /usr/bin/codesign_allocate_old sudo ln -s /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/codesign_allocate /usr/bin