UiPath Studio調試/運行時當即報錯提示0x80004005「拒絕訪問」的解決方案

轉載注意：本文由思想瞭望者首發於博客園，轉載請註明出處。

本文參考了：

1. https://forum.uipath.com/t/access-denied-to-launch-an-application-when-running-uipath/220677/2
2. https://forum.uipath.com/t/access-denied-1/236092/10

所以解決方案並不是本人原創。本人僅做搬運工做。

 

現象

在UiPath Studio中Debug或者Run任意Workflow時（即便是新建的空的Workflow），沒法啓動並當即報錯，提示相似如下消息：

20.4.2 拒絕訪問。 RemoteException wrapping System.ComponentModel.Win32Exception: 拒絕訪問。 at System.Diagnostics.ProcessManager.OpenProcess(Int32 processId, Int32 access, Boolean throwIfExited) at System.Diagnostics.Process.GetProcessHandle(Int32 access, Boolean throwIfExited) at System.Diagnostics.Process.OpenProcessHandle(Int32 access) at System.Diagnostics.Process.set_EnableRaisingEvents(Boolean value) at UiPath.Service.UserHost.AttendedServiceProxy.RegisterClientProcess(Int32 clientPid) at UiPath.Service.UserHost.StudioOperations.<Prepare>d__3.MoveNext() --- 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 UiPath.Service.Core.Utils.TaskUtils.<WithShortWait>d__0.MoveNext() --- 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 UiPath.Service.UserHost.StudioOperations.<>c__DisplayClass5_0.<<RunJob>b__0>d.MoveNext() --- 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 UiPath.CoreIpc.CancellationHelper`1.<Invoke>d__3`1.MoveNext() --- 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 UiPath.CoreIpc.Server.<InvokeMethod>d__22.MoveNext() --- 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 UiPath.CoreIpc.Server.<HandleRequest>d__21.MoveNext() --- 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 UiPath.CoreIpc.Server.<>c__DisplayClass4_2.<<-ctor>b__6>d.MoveNext() --- 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 UiPath.CoreIpc.IOHelpers.<WithResult>d__10.MoveNext() --- 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 UiPath.CoreIpc.IOHelpers.<WithTimeout>d__16`1.MoveNext()

此時，在計算機管理的事件查看器中，應用程序日誌能夠看到這樣一條錯誤（以下圖）。

 本機同時裝有的其它RPA工具上並未發生此現象。

 

緣由

暫不明確。但能夠肯定問題出在UiPath自己，而不是系統環境。

 

解決方案

在任務管理器中，在「詳細信息」頁面，選中「UiPath.Service.UserHost.exe」，而後結束任務。便可正常運行。親測有效。

 

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