问题解决：NuGet packages need to be restored before building. NuGet MSBuild targets are missing and are needed for building.

错误：

Error: NuGet packages need to be restored before building. NuGet MSBuild targets are missing and are needed for building. The NuGet MSBuild targets are generated when the NuGet packages are restored. (Blog.Core.Serilog.Es)

 

Nuget包还原失败

原因：https://api.nuget.org/v3/index.json 网址访问失败

解决办法，连vpn或换个nuget源