IOException: 管道已结束。

StackTrace:
   在 System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
   在 System.IO.Pipes.NamedPipeServerStream.EndWaitForConnection(IAsyncResult asyncResult)
   在 Clifton.Core.Pipes.ServerPipe.PipeConnected(IAsyncResult ar)
   在 System.IO.Pipes.NamedPipeServerStream.AsyncWaitForConnectionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOverlapped)
   在 System.Threading._IOCompletionCallback.PerformIOCompletionCallback(UInt32 errorCode, UInt32 numBytes, NativeOverlapped* pOVERLAP)