错误信息为：
This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them. For more information, see http://go.microsoft.com/fwlink/?LinkID=317567. PIS.Site.Service D:work服务DataService_keyPIS.Site.ServicePIS.Site.Service.csproj 258
解决方案：http://go.microsoft.com/fwlink/?LinkID=317567