需要安裝Dnx Runtime軟件包

Question

在Windows 10 x64計算機上運行的VS2015中，嘗試構建.net core Web項目時出現以下錯誤。

The Dnx Runtime package needs to be installed. See output window for more details

這是輸出窗口日志（僅相關部分）

1>Done building target "BeforeCompile" in project "WebApplication1.xproj".
1>       Target "_TimeStampBeforeCompile" skipped, due to false condition; ('$(RunPostBuildEvent)'=='OnOutputUpdated' or ('$(RegisterForComInterop)'=='true' and '$(OutputType)'=='library')) was evaluated as (''=='OnOutputUpdated' or (''=='true' and 'Library'=='library')).
1>     1>
1>Target "GetRuntimeToolingPathTarget" in file "C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\DNX\Microsoft.DNX.targets" from project "C:\Users\v-prchep\Documents\Visual Studio 2015\Projects\WebApplication1\src\WebApplication1\WebApplication1.xproj" (target "CoreCompile" depends on it):
1>       Using "GetRuntimeToolingPath" task from assembly "C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\DNX\Microsoft.DNX.Tasks.dll".
1>       Task "GetRuntimeToolingPath"
1>       Done executing task "GetRuntimeToolingPath".
1>       Using "Error" task from assembly "Microsoft.Build.Tasks.Core, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a".
1>       Task "Error"
1>     1>
1>C:\Program Files (x86)\MSBuild\Microsoft\VisualStudio\v14.0\DNX\Microsoft.DNX.targets(126,5): error : The Dnx Runtime package needs to be installed. See output window for more details.
1>       Done executing task "Error" -- FAILED.
1>     1>
1>Done building target "GetRuntimeToolingPathTarget" in project "WebApplication1.xproj" -- FAILED.
1>     1>
1>Target "_CheckForCompileOutputs" in file "C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets" from project "C:\Users\v-prchep\Documents\Visual Studio 2015\Projects\WebApplication1\src\WebApplication1\WebApplication1.xproj" (target "_CleanGetCurrentAndPriorFileWrites" depends on it):
1>     1>
1>Done building target "_CheckForCompileOutputs" in project "WebApplication1.xproj".
1>       Target "_SGenCheckForOutputs" skipped, due to false condition; ('$(_SGenGenerateSerializationAssembliesConfig)' == 'On' or ('@(WebReferenceUrl)'!='' and '$(_SGenGenerateSerializationAssembliesConfig)' == 'Auto')) was evaluated as ('Off' == 'On' or (''!='' and 'Off' == 'Auto')).
1>     1>
1>Target "_CleanGetCurrentAndPriorFileWrites" in file "C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets" from project "C:\Users\v-prchep\Documents\Visual Studio 2015\Projects\WebApplication1\src\WebApplication1\WebApplication1.xproj" (target "_CleanRecordFileWrites" depends on it):
1>       Task "ReadLinesFromFile"
1>       Done executing task "ReadLinesFromFile".
1>       Using "ConvertToAbsolutePath" task from assembly "Microsoft.Build.Tasks.Core, Version=14.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a".
1>       Task "ConvertToAbsolutePath"
1>       Done executing task "ConvertToAbsolutePath".
1>       Task "FindUnderPath"
1>         Comparison path is "C:\Users\v-prchep\Documents\Visual Studio 2015\Projects\WebApplication1\src\WebApplication1".
1>       Done executing task "FindUnderPath".
1>       Task "FindUnderPath"
1>         Comparison path is "..\..\artifacts\bin\WebApplication1\".
1>       Done executing task "FindUnderPath".
1>       Task "FindUnderPath"
1>         Comparison path is "..\..\artifacts\obj\WebApplication1\Debug\".
1>       Done executing task "FindUnderPath".
1>       Task "RemoveDuplicates"
1>       Done executing task "RemoveDuplicates".
1>     1>
1>Done building target "_CleanGetCurrentAndPriorFileWrites" in project "WebApplication1.xproj".
1>     1>
1>Target "_CleanRecordFileWrites" in file "C:\Program Files (x86)\MSBuild\14.0\bin\Microsoft.Common.CurrentVersion.targets" from project "C:\Users\v-prchep\Documents\Visual Studio 2015\Projects\WebApplication1\src\WebApplication1\WebApplication1.xproj" (target "CoreBuild" depends on it):
1>       Task "RemoveDuplicates"
1>       Done executing task "RemoveDuplicates".
1>       Task "MakeDir"
1>       Done executing task "MakeDir".
1>       Task "WriteLinesToFile"
1>       Done executing task "WriteLinesToFile".
1>     1>
1>Done building target "_CleanRecordFileWrites" in project "WebApplication1.xproj".
1>
1>Build FAILED.
1>
1>Time Elapsed 00:00:00.02
========== Rebuild All: 0 succeeded, 1 failed, 0 skipped ==========

在日志后面，我檢查了Microsoft.DNX.targets文件並找到了這一行

<Error Text="The Dnx Runtime package needs to be installed. See output window for more details." Condition="!Exists('$(RuntimeToolingExe)')" />

似乎它正在嘗試從$(RuntimeToolingExe)查找dnx路徑，但是我無法弄清楚它的設置位置。

注意： dnx運行時已安裝，我可以使用以下命令從命令提示符運行應用程序

dnx web

應用程序與此運行良好。 我相信這是VS2015工具的問題，我無法解決。 您能幫我嗎？

PS：遵循此SO線程中提供的所有步驟，似乎沒有任何效果。

Answer 1

一旦我卸載styleCop ，問題終於解決了。 似乎StyleCop覆蓋了Visual Studio正在尋找的dnx路徑。 但是，這只是一個猜測，我不確定它為什么起作用！