预览.aspx页面时出现的问题

Question

我在预览.aspx页面时，出现了错误，有如下的代码：
Server Error in '/' Application.
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Unable to retreive configuration section 'system.web/healthMonitoring'.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Configuration.ConfigurationException: Unable to retreive configuration section 'system.web/healthMonitoring'.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.

Stack Trace:

[ConfigurationException: Unable to retreive configuration section 'system.web/healthMonitoring'.]
System.Web.Configuration.RuntimeObject.Get(Object config, String sectionPath, Type type) +114
System.Web.Configuration.RuntimeConfig.GetInternalSection(String sectionName, Type type, ResultsIndex index) +60
System.Web.Configuration.RuntimeConfig.get_HealthMonitoring() +29
System.Web.Configuration.HealthMonitoringSectionHelper..ctor() +147
System.Web.Management.HealthMonitoringManager..ctor() +50
System.Web.Management.HealthMonitoringManager.Manager() +210
System.Web.Management.WebBaseEvent.RaiseRuntimeError(Exception e, Object source) +33
System.Web.HttpResponse.ReportRuntimeError(Exception e, Boolean canThrow, Boolean localExecute) +84
System.Web.HttpRuntime.FinishRequest(HttpWorkerRequest wr, HttpContext context, Exception e) +453

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Version Information: Microsoft .NET Framework Version:2.0.40607.16; ASP.NET Version:2.0.40607.16
请问应该怎么解决呀，是怎么回事呀？谁能帮我解决的话，我现加15分．．
谁能帮我解决这个问题，我再加20分．即解决问题之后就可以得到我给出的55分的分数．再加上百度奖励的20分，总共就是75分．

Answer 1

如果你该了．config文件，看一看你的Debug是不是="true"
如果你是烤的别人的文档来Dedug的话．那么你先看一看它在你机子上的IIS中的属性中应用选项是不是别的不同，如果不同请将它该一下．这样就可以了．

参考资料：.net的自助功能

Answer 2

…… 代码？