错误：Your project does not reference ".NETFramework,Version=v4.6.1" framework. Add a reference to ".NETFramework,Version=v4.6.1" in the "TargetFrameworks" property of your project file and then re-run NuGet restore.
解决方案：
删除工程目录下的 obj 文件夹。 再进行编译
标签：restore,NETFramework,reference,project,Add,Version From： https://www.cnblogs.com/xixiuling/p/17568949.html