Wrong to add mosek

I tried Pkg.add(“Mosek”) to add Mosek package, but I got following errors when I use it.(I have installed the license.)

I have no idea why I have received these errors. Please let me know if you have been in the same situation.

Don’t use JuliaPro unless there’s a very specific reason why you have to - the latest Julia release is 1.6.3.

Did you follow the installation docs?

Yes,I chose the default installation path.But I got the same error.And I got a new error after running Pkg.bulid(“Mosek”) .The error is that I failed to get MOSEK download host.