Hello Ive sent a version of my app one week ago through Xcode 6 and it didn\'t have any problem. Today Ive tried to upload a new version of my App via Xcode and when uploading,
I had the same problem, though none of the suggested steps solved my problem, other than using the Application Loader.
However, one thing that bothered me was a warning message saying that:
The resulting API analysis file is too large. We were unable to validate your API usage prior to delivery. This is just an informational message.
It came to me that it might be the reason why Xcode's uploading might be messed up, since it locks at the Sending API usage to iTunes Connect
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Some people mention it in some posts here in stackoverflow.