iTunes Store Operation Failed error: 122 (51) while uploading .ipa to iTunes Connect

Question

I'm receiving this error when uploading my archive file. I have tried a lot of things and don't know what's going on.

Also there are not similar issues in the web.

Errors are:

Destination: Disk quota exceeded (5)
iTunes Store Operation Failed error: 122 (51)

Answer 1

You should validate your *.ipa and fix the real problem. In my case it was

Invalid App Store Icon. The App Store Icon in the asset catalog in '***.app' can't be transparent nor contain an alpha channel.

Answer 2

I just noticed this too, after performing a validate it turns out I had forgotten to increase the version, wonderfully stupid.

The less said about the "iTunes Store Operation Failed" error of "Destination: Disk quota exceeded" the better.