ASP.NET Core系统找不到指定的文件 [英] ASP.NET Core The system cannot find the file specified

问题描述

我已遵循此有关如何使angular和ASP.NET Core一起运行的教程.初始构建工作正常，但是在更新角度包之后，我在启动应用程序时收到以下错误(我还必须在此过程中重新安装nodejs，不确定是否与此相关):

I have followed this tutorial on getting angular and ASP.NET Core running together. The initial build worked fine but after updating angular packages I am receiving the following error on startup of the application(I also had to reinstall nodejs in the process, not sure if this is related):

错误在以下行:

app.UseWebpackDevMiddleware(new WebpackDevMiddlewareOptions {
    HotModuleReplacement = true
});

该错误本身并未为我提供任何有用的信息来查找问题.

The error itself does not provide me with any usefull information to track down the issue.

我得到一个:

System.AggregateException =>计数=错误CS0103:名称 当前上下文中不存在"InnerExceptionCount"

System.AggregateException => Count = error CS0103: The name 'InnerExceptionCount' does not exist in the current context

在InnerExceptions下，它列出了以下错误:

Under InnerExceptions it lists the following error:

System.ComponentModel.Win32Exception:系统找不到文件 在System.Diagnostics.Process.StartCore(ProcessStartInfo)中指定 startInfo)位于System.Diagnostics.Process.Start()处 System.Diagnostics.Process.Start(ProcessStartInfo startInfo)位于 Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance.LaunchNodeProcess(ProcessStartInfo startInfo) Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance..ctor(字符串 entryPointScript，字符串projectPath，字符串[] watchFileExtensions， 字符串commandLineArguments，ILogger nodeOutputLogger，IDictionary2 environmentVars，Int32调用超时毫秒，布尔值 launchWithDebugging，Int32 debuggingPort)，位于 Microsoft.AspNetCore.NodeServices.HostingModels.HttpNodeInstance..ctor(字符串 projectPath，字符串[] watchFileExtensions，ILogger nodeInstanceOutputLogger，IDictionary2环境变量，Int32 invocationTimeoutMilliseconds，布尔值launchWithDebugging，Int32 debuggingPort，Int32端口) Microsoft.AspNetCore.NodeServices.NodeServicesFactory.CreateNodeInstance(NodeServicesOptions 选项) Microsoft.AspNetCore.NodeServices.NodeServicesFactory.<> c__DisplayClass0_0.b__0() 在 Microsoft.AspNetCore.NodeServices.NodeServicesImpl.CreateNewNodeInstance() 在 Microsoft.AspNetCore.NodeServices.NodeServicesImpl.GetOrCreateCurrentNodeInstance() 在 Microsoft.AspNetCore.NodeServices.NodeServicesImpl.d__10`1.MoveNext()}

System.ComponentModel.Win32Exception: The system cannot find the file specified at System.Diagnostics.Process.StartCore(ProcessStartInfo startInfo) at System.Diagnostics.Process.Start() at System.Diagnostics.Process.Start(ProcessStartInfo startInfo) at Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance.LaunchNodeProcess(ProcessStartInfo startInfo) at Microsoft.AspNetCore.NodeServices.HostingModels.OutOfProcessNodeInstance..ctor(String entryPointScript, String projectPath, String[] watchFileExtensions, String commandLineArguments, ILogger nodeOutputLogger, IDictionary2 environmentVars, Int32 invocationTimeoutMilliseconds, Boolean launchWithDebugging, Int32 debuggingPort) at Microsoft.AspNetCore.NodeServices.HostingModels.HttpNodeInstance..ctor(String projectPath, String[] watchFileExtensions, ILogger nodeInstanceOutputLogger, IDictionary2 environmentVars, Int32 invocationTimeoutMilliseconds, Boolean launchWithDebugging, Int32 debuggingPort, Int32 port) at Microsoft.AspNetCore.NodeServices.NodeServicesFactory.CreateNodeInstance(NodeServicesOptions options) at Microsoft.AspNetCore.NodeServices.NodeServicesFactory.<>c__DisplayClass0_0.b__0() at Microsoft.AspNetCore.NodeServices.NodeServicesImpl.CreateNewNodeInstance() at Microsoft.AspNetCore.NodeServices.NodeServicesImpl.GetOrCreateCurrentNodeInstance() at Microsoft.AspNetCore.NodeServices.NodeServicesImpl.d__10`1.MoveNext()}

如果有人可以向我指出从错误中获取更多信息的方向，将会很有帮助.

If someone can point me in the direction to get more information from the Error would be helpful.

推荐答案

似乎无法找到node.exe.第一次安装Node之后，我看到了相同的错误.这是因为安装Node会修改系统路径，而IIS不会获取新路径.我必须重新启动服务器，然后它才能找到节点exe.

It looks like it is unable to find node.exe. I saw the same error after installing Node for the first time. It was because installing Node modified the system Path and the new Path wasn't getting picked up by IIS. I had to reboot my server and it was then able to find the node exe.

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