发布ASP.NET核心应用程序:命令"npm install"退出,代码为9009

Question

我有一个带有React前端的ASP.NET Core解决方案.我现在有一个问题,我无法使用Visual Studio中的正常发布窗口释放代码.我发布到Azure网络应用程序内的Web应用程序,它可以完美地用于我所有其他以相同方式构建的解决方案.

代码在本地完美运行,我可以在npm install本地运行而不会出现问题.

发布时,错误显然来自某些未找到的文件.在我的项目文件中,我一直在调试,发现这是一个挑战:

 <Target Name="PublishRunWebpack" AfterTargets="ComputeFilesToPublish">
    <!-- As part of publishing, ensure the JS resources are freshly built in production mode -->
    <Exec Command="npm install" />
    <Exec Command="node node_modules/webpack/bin/webpack.js --config webpack.config.vendor.js --env.prod" />
    <Exec Command="node node_modules/webpack/bin/webpack.js --env.prod" />

    <!-- Include the newly-built files in the publish output -->
    <ItemGroup>
      <DistFiles Include="wwwroot\dist\**" />
      <ResolvedFileToPublish Include="@(DistFiles->'%(FullPath)')" Exclude="@(ResolvedFileToPublish)">
        <RelativePath>%(DistFiles.Identity)</RelativePath>
        <CopyToPublishDirectory>PreserveNewest</CopyToPublishDirectory>
      </ResolvedFileToPublish>
    </ItemGroup>
  </Target>

Visual Studio中的错误:

Severity    Code    Description Project File    Line    Suppression State
Error       The command "npm install" exited with code 9009.    Likvido.CreditRisk  C:\Users\MYNAME\Documents\Github\Likvido.CreditRisk\Likvido.CreditRisk\Likvido.CreditRisk\Likvido.CreditRisk.csproj 75  

如果我注释掉前三行(npm install和两个webpacks),我可以发布解决方案,但显然没有使用JavaScript.

不知道怎么解决这个问题？至少,如何更好地调试它？

Visual Studio中的可视错误:

GUI中引用的日志文件:

09/04/2018 11.07.03
System.AggregateException: One or more errors occurred. ---> System.Exception: Publish failed due to build errors. Check the error list for more details.
   --- End of inner exception stack trace ---
   at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
   at System.Threading.Tasks.Task.Wait(Int32 millisecondsTimeout, CancellationToken cancellationToken)
   at Microsoft.VisualStudio.Web.Publish.PublishService.VsWebProjectPublish.<>c__DisplayClass40_0.<PublishAsync>b__2()
   at System.Threading.Tasks.Task`1.InnerInvoke()
   at System.Threading.Tasks.Task.Execute()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.ApplicationCapabilities.Publish.ViewModel.ProfileSelectorViewModel.<RunPublishTaskAsync>d__88.MoveNext()
---> (Inner Exception #0) System.Exception: Publish failed due to build errors. Check the error list for more details.<---

===================

Answer 1

所以这很令人尴尬但对未来的Google员工有用.

根本问题很简单:它是一台未安装Node.js(或NPM)安装的新计算机.这使得错误消息非常有用:node找不到!

解决方案很简单:安装Node.js,确保它在PATH中并重新启动计算机.那你就解决了这个问题.