The bundle ID entered in GS is not the same as the bundle in your apple dev account. Check the bundle ID on Apple Dev and make sure they are the same.....thats the 'com.domain.app' If you have new provs etc. make sure you download and install the developer keys into keychain so that xCode finds them.
does your display name have a non alpha numeric character? I had the same problem, took me 4 days of fcking around with certificates, provisioning, updating OS, xcode only to work out that I had to delete the "?" from the end of my display name, then it magically worked.
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If you have new provs etc. make sure you download and install the developer keys into keychain so that xCode finds them.
either that or you are including the random number/character string.
i.e. if xcode has something like S3DXN2D3.com.bundle.bundleid. you only want to put in com.bundle.bundleid.