Failed to access IIS metabase

Server Error in '/TestDotNet' Application.

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Failed to access IIS metabase.

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.Web.Hosting.HostingEnvironmentException: Failed to access IIS metabase.

The process account used to run ASP.NET must have read access to the IIS metabase (e.g. IIS://servername/W3SVC). For information on modifying metabase permissions, please see http://support.microsoft.com/?kbid=267904.

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:

[HostingEnvironmentException: Failed to access IIS metabase.]    System.Web.Configuration.MetabaseServerConfig.MapPathCaching(String siteID, VirtualPath path) +637    System.Web.Configuration.MetabaseServerConfig.System.Web.Configuration.IConfigMapPath2.MapPath(String siteID, VirtualPath vpath) +9    System.Web.Hosting.HostingEnvironment.MapPathActual(VirtualPath virtualPath, Boolean permitNull) +174    System.Web.Hosting.HostingEnvironment.MapPathInternal(VirtualPath virtualPath, Boolean permitNull) +51    System.Web.CachedPathData.GetConfigPathData(String configPath) +341    System.Web.CachedPathData.GetConfigPathData(String configPath) +234    System.Web.CachedPathData.GetApplicationPathData() +38    System.Web.CachedPathData.GetVirtualPathData(VirtualPath virtualPath, Boolean permitPathsOutsideApp) +8809743    System.Web.Configuration.RuntimeConfig.GetLKGRuntimeConfig(VirtualPath path) +117 

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Version Information: Microsoft .NET Framework Version:2.0.50727.3615; ASP.NET Version:2.0.50727.3618

解决方法：在Visual Studio 2008 Command Prompt 中运行aspnet_regiis –ga ASPNET