您好，我在进行VSTS构建时遇到了Build解决方案中的错误。我已经检查了软件包管理器设置及其下的所有字段（允许nugget下载丢失的软件包并自动检查缺少的软件包）是否已启用。请帮忙。提前谢谢。
Phase 1
No package sources were found in the NuGet.config file at D:\A03_work\409\Nuget\tempNuGet_593461.config
WindowsService.csproj (344, 5)
WindowsService.csproj(344,5): Error : 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=322105. The missing file is D:\A03_work\409\s\WindowsService\\.nuget\NuGet.targets.
Process 'msbuild.exe' exited with code '1'