Where can we see a list of these error code references? I’m getting 7003, but seems Apple spit out these codes and then it’s up to the internet to explain what they mean..??

Is there not a list of error codes somewhere where we can look it up? Seems strange to be given an error code by Apple but no reference to it

I had the same issue on a new computer, but after I signed in to icloud on the computer it completed the download