I have made a small update today to my app and when i tried to send the ipa via app loader, I got this strange error. I didnt add anything until last version just a label text change.
I dont know how to upload a debug ipa. I clicked on build release mode than downloaded the last build and uploaded.
I will try again with a fresh one and write here.
TY erel
This option just downloads the last compiled ipa. Its purpose is to allow you to download a release app, however if someone uses iTunes to install the app then it can also be useful when debugging.