The nuget push command failure is misleading

[IEvangelist]

NuGet Product Used

dotnet.exe

Product Version

9.0.100

Worked before?

No response

Impact

It's more difficult to complete my work

Repro Steps & Context

Context:

A few years ago, I wrote some packages that were prefixed with GitHub.* and GitHub has since reserved that prefix. The existing packages that I've maintained are able to be updated, but I'm not able to push new packages with the prefix anymore. I'm good with all that, but I was unaware that the prefix was reserved as the error/failure messages are misleading.

CI/CD

You can see that the error message indicates a package with the same ID already exists, which is not true, you can look yourself. But the prefix is now reserved, that should be in the error message.

Something more like the UX on NuGet.org would be better:

Reproduce:

Push a package to the official feeds where the package ID includes a prefix that is reserved.

Verbose Logs

No response