Error submitting app via XCode [closed]

Solution 1:

Just had this happen on Xcode 7. Quit Xcode, opened it back up, resubmitted and it worked fine.

EDIT: I agree with @arlomedia in the comments, this is a problem on Apple's side. Just had it happen again and restarting did not fix it. Maybe I just got lucky the first time :)

Solution 2:

That seems like a temporary issue from Apple's side. It should have been fixed by now. Try uploading again.

Solution 3:

I saw a slightly different error message, six times in a row:

Exception occurred when creating MZContentProviderUpload for provider. (1004)

Restarted my mac, resubmitted and boom - worked.

Can't say for sure if it was the restart, could have just been something on Apple's servers as the other answers point out.