Question

我的监控应用程序不时会因为没有明显原因而死亡。似乎“mshtml.HTMLDocument”资源不可用。其他人经历过类似的事吗？提前谢谢。

错误讯息：

14.04.2011 18:26:37 -> Test 1.2 (Subscriber type requests), error: Unable to cast COM object of type 'System.__ComObject' to interface type 'mshtml.HTMLDocument'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{3050F55F-98B5-11CF-BB82-00AA00BDCE0B}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)).

错误堆栈跟踪：

14.04.2011 18:26:37 -> Test 1.2 (Subscriber type requests), trace:    at WatiN.Core.Native.InternetExplorer.IEWaitForComplete.WaitForFramesToComplete(IHTMLDocument2 maindocument)
   at WatiN.Core.Native.InternetExplorer.IEWaitForComplete.WaitForFramesToComplete(IHTMLDocument2 maindocument)
   at WatiN.Core.Native.InternetExplorer.IEWaitForComplete.WaitForCompleteOrTimeout()
   at WatiN.Core.WaitForCompleteBase.DoWait()
   at WatiN.Core.IE.WaitForComplete(Int32 waitForCompleteTimeOut)
   at WatiN.Core.Browser.GoTo(Uri url)
   at WatiN.Core.Browser.GoTo(String url)
   at WebMonitor.Tests.Execute() ...

Answer 1

感谢报道。我已经对演员进行了重新尝试。此异常可能是由计时引起的。希望重试能解决它。将成为下一个版本的一部分或从SourceForge获取最新代码。

WatiN“无法转换COM对象”异常

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