whats wrong with this? I can not update and add any packages for this error

I see that you are using the General registry within JuliaPro. By default, JuliaPro uses the JuliaProRegistry. What steps did you take to install the General registry?

Though i have removed “General”,when I try to update again,it will reinstall!

Please execute following commands to fix this issue

Pkg.Registry.add(Pkg.RegistrySpec(url = "$(Pkg.pkg_server())/registry/JuliaPro", uuid = "32d90280-1a8c-50bf-8a59-7bd9ce241c9a"))

You maybe asked to authenticate after executing above commands. If you’re planning on using the IDE in your new environment, I would suggest you to execute following commands as well.

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Thanks!it works for me