.Net Core Web projects to add the Controller error

VS2019 installed today in preparation for new projects in hand and thought, I did not expect the first step when you add Controller card Lord, VS actually error: failed from a remote source " http://go.microsoft.com/fwlink/? = 206 669 LinkID / FindPackagesById ()? the above mentioned id = 'Microsoft.VisualStudio.Web.CodeGeneration' & semVerLevel = 2.0.0 "retrieves information about the" information Microsoft.VisualStudio.Web.CodeGeneration "of.
" Http://go.microsoft.com/fwlink/?LinkID=206669/FindPackagesById ()? The above mentioned id = 'Microsoft.VisualStudio.Web.CodeGeneration' & semVerLevel = 2.0.0" at the content is not valid XML.

It makes me very sad, even a HelloWord can not write.

Error is obvious, it is not found Nuget package, so in the Nuget manager default path to Nuget: https://api.nuget.org/v3/index.json can be used normally.