Failed to access IIS metabase

访问网站时发生如下异常，解决办法为注册ASP.NET运行环境至IIS，命令如下：

 

C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727>aspnet_regiis.exe -i

Server Error in '/portal' 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) +8809151
   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 <!-- [HostingEnvironmentException]: Failed to access IIS metabase. at System.Web.Configuration.MetabaseServerConfig.MapPathCaching(String siteID, VirtualPath path) at System.Web.Configuration.MetabaseServerConfig.System.Web.Configuration.IConfigMapPath2.MapPath(String siteID, VirtualPath vpath) at System.Web.Hosting.HostingEnvironment.MapPathActual(VirtualPath virtualPath, Boolean permitNull) at System.Web.Hosting.HostingEnvironment.MapPathInternal(VirtualPath virtualPath, Boolean permitNull) at System.Web.CachedPathData.GetConfigPathData(String configPath) at System.Web.CachedPathData.GetConfigPathData(String configPath) at System.Web.CachedPathData.GetApplicationPathData() at System.Web.CachedPathData.GetVirtualPathData(VirtualPath virtualPath, Boolean permitPathsOutsideApp) at System.Web.Configuration.RuntimeConfig.GetLKGRuntimeConfig(VirtualPath path) -->