I have tried to upload my app to App Store (iTunes Connect) to test my app in TestFlight, but always appears the same error message. I don´t know what I´m doing wrong. It´s the third day I´m trying to upload my app.
Also read that this is a problem from Apple's servers, but every day is the same problem.
Please help me with this problem.
I have done it with Application Loader. First export the .ipa file, and then proccesed in Application Loader to visualize in iTunes Connect. Never works with Xcode.