Fail to open the source code (the Caliburn.Micro.sln file)

[hoangcuongvn]

When I open the CM's solution file Caliburn.Micro.sln, I get an error message one or more projects were not loaded correctly. And the Output shows these sentences

Caliburn.Micro\src\Caliburn.Micro.Core\Caliburn.Micro.Core.csproj : error  : The expression "[System.IO.Path]::GetDirectoryName('')" cannot be evaluated. The path is not of a legal form.  C:\Users\XXX\.nuget\packages\msbuild.sdk.extras\2.0.54\Sdk\Sdk.props
Caliburn.Micro\src\Caliburn.Micro.Platform\Caliburn.Micro.Platform.csproj : error  : The expression "[System.IO.Path]::GetDirectoryName('')" cannot be evaluated. The path is not of a legal form.  C:\Users\XXX\.nuget\packages\msbuild.sdk.extras\2.0.54\Sdk\Sdk.props

I note that I am able to open the solution file of older CM's source code without error. I am using VS2017 with the latest Update.

[nigel-sampson]

This looks very similar to novotnyllc/MSBuildSdkExtras#190