[ArgumentException: 已添加项。字典中的关键字:“RegistryPermission”所添加的关键字:“RegistryPermission”]    System.Collections.Hashtable.Insert(Object key, Object nvalue, Boolean add) +7482408    System.Collections.Hashtable.Add(Object key, Object value) +11    System.Security.Policy.PolicyLevel.FromXml(SecurityElement e) +307    System.Security.SecurityManager.LoadPolicyLevelFromStringHelper(String str, String path, PolicyLevelType type) +207    System.Security.SecurityManager.LoadPolicyLevelFromString(String str, PolicyLevelType type) +37    System.Web.HttpRuntime.CreatePolicyLevel(String configFile, String appDir, String binDir, String strOriginUrl, Boolean& foundGacToken) +420    System.Web.HttpRuntime.SetTrustLevel(TrustSection trustSection, SecurityPolicySection securityPolicySection) +8913358    System.Web.HttpRuntime.HostingInit(HostingEnvironmentFlags hostingFlags) +186 [HttpException (0x80004005): 已添加项。字典中的关键字:“RegistryPermission”所添加的关键字:“RegistryPermission”]    System.Web.HttpRuntime.FirstRequestInit(HttpContext context) +8886319    System.Web.HttpRuntime.EnsureFirstRequestInit(HttpContext context) +85    System.Web.HttpRuntime.ProcessRequestInternal(HttpWorkerRequest wr) +259 -------------------------------------------------------------------------------- 版本信息: Microsoft .NET Framework 版本:2.0.50727.3053; ASP.NET 版本:2.0.50727.3053