NuGet 包管理器 - 未找到項目“默認”。 - 視覺工作室 2017

Question

我正在使用 Visual Studio 2017 社區，我正在嘗試為我剛剛開始工作的項目構建解決方案。

每當我嘗試構建解決方案文件時，都會收到以下錯誤：

C:\Projects\UnitTests\UnitTests.csproj(91,5): error : This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is ..\packages\MSTest.TestAdapter.1.1.18\build\net45\MSTest.TestAdapter.props.
C:\Projects\WebAPI\WebAPI.csproj(469,5): error : This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is ..\packages\Microsoft.Net.Compilers.2.1.0\build\Microsoft.Net.Compilers.props.
C:\Projects\APITester\APITester.csproj(316,5): error : This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is ..\packages\Microsoft.Net.Compilers.2.6.1\build\Microsoft.Net.Compilers.props.
C:\Projects\Admin\Admin.csproj(391,5): error : This project references NuGet package(s) that are missing on this computer. Use NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is ..\packages\Microsoft.Net.Compilers.2.6.1\build\Microsoft.Net.Compilers.props.

如果我試着跑

Update-Package --reinstall

或者

Install-Package Microsoft.Net.Compilers -Version 2.6.1

我收到以下錯誤：

Install-Package : Project 'Default' is not found.
At line:1 char:1
+ Install-Package Microsoft.Net.Compilers -Version 2.6.1
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Default:String) [Install-Package], ItemNotFoundException
    + FullyQualifiedErrorId : NuGetProjectNotFound,NuGet.PackageManagement.PowerShellCmdlets.InstallPackageCommand


Update-Package : Project 'Default' is not found.
At line:1 char:1
+ Update-Package --reinstall
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : ObjectNotFound: (Default:String) [Update-Package], ItemNotFoundException
    + FullyQualifiedErrorId : NuGetProjectNotFound,NuGet.PackageManagement.PowerShellCmdlets.UpdatePackageCommand

Answer 1

打開這些項目的解決方案，因為這將自動設置默認項目。 然后你就可以安裝這些 nuget 包了。