如何利用其他流程＆＃39; `stderr`和`stdout`？

Question

这个问题与提出的问题不同：

1. 我的问题非常具体到.net-core。即即使有经典的解决方案＆＃34; .NET Framework可能不适用于.NET Core环境。
2. 发布的问题之间存在重大差距（8年！）。

请不将其视为副本，因为它不是。

我发现自己无法点击在我的应用程序之外创建的stderr和stdout个流程。

targetProcessList的类型为List<System.Diagnostics.Process>。

以下代码

foreach (var proc in targetProcessList)
{
    proc.StandardError.ReadToEndAsync().ContinueWith(t => Console.WriteLine(t.Result));
    proc.StandardOutput.ReadToEndAsync().ContinueWith(t => Console.WriteLine(t.Result));
}

导致InvalidOperationException（可能是因为没有为此类用法配置进程）：



[c:\           HRIS.Web] dotnet run :       User profile is available. Using '                 \AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
[c:\           HRIS.Web] dotnet run :
[c:\           HRIS.SPA] npm run start-prodish-for-e2e ||| [12044] cmd
[c:\           HRIS.SPA] npm run start-prodish-for-e2e ||| [11080] conhost
System.InvalidOperationException: StandardError has not been redirected.
   at System.Diagnostics.Process.get_StandardError()
   at RunE2E.Program.StartProcessViaCmd(String command, String arguments, String workingDirectory)
   at RunE2E.Program.Main(String[] args)
System.NullReferenceException: Object reference not set to an instance of an object.
   at RunE2E.Program.Main(String[] args)

所以，我试图像这样动态启用重定向：

foreach (var proc in targetProcessList)
{
    proc.StartInfo.RedirectStandardError = true;
    proc.StartInfo.RedirectStandardOutput = true;
    proc.StandardError.ReadToEndAsync().ContinueWith(t => Console.WriteLine(t.Result));
    proc.StandardOutput.ReadToEndAsync().ContinueWith(t => Console.WriteLine(t.Result));
}

但在运行时仍然受到打击



[c:\           \HRIS.Web] dotnet run :       User profile is available. Using '                 \AppData\Local\ASP.NET\DataProtection-Keys' as key repository and Windows DPAPI to encrypt keys at rest.
[c:\           \HRIS.Web] dotnet run :
[c:\           \HRIS.SPA] npm run start-prodish-for-e2e ||| [14952] cmd
[c:\           \HRIS.SPA] npm run start-prodish-for-e2e ||| [10784] conhost
System.InvalidOperationException: Process was not started by this object, so requested information cannot be determined.
   at System.Diagnostics.Process.get_StartInfo()
   at RunE2E.Program.StartProcessViaCmd(String command, String arguments, String workingDirectory)
   at RunE2E.Program.Main(String[] args)
System.NullReferenceException: Object reference not set to an instance of an object.
   at RunE2E.Program.Main(String[] args)

有办法解决这个问题吗？