• This issue is blocking
• This issue is causing unreasonable pain

See https://github.com/dotnet/arcade/blob/master/eng/common/tools.ps1#L356-L374 . We want to remove all dependence on myget; I'd suggest for maximum compatibility we just put all versions of this package on either blob storage or our dotnet-eng / dotnet-tools AzDO package feeds.

For maximum correctness we should just make a zip of the latest stable .NET Core Msbuild, put it on netcorenativeassets, and simply download with lots of good retry code from there in this function.

@garath if this is a dupe please accept my apologies and close it.