error message: I tried change Temporary "ASP.NET Files" floder control,but not Solution this error æç»è®¿é®ã 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.ApplicationException: æç»è®¿é®ã 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: [ApplicationException: æç»è®¿é®ã ] System.Security.Principal.WindowsIdentity._ResolveIdentity(IntPtr userToken) System.Security.Principal.WindowsIdentity.get_Name() System.Web.Configuration.AuthorizationConfigRule.IsUserAllowed(IPrincipal user, String verb) 흎 System.Web.Configuration.AuthorizationConfig.IsUserAllowed(IPrincipal user, String verb) System.Web.Security.UrlAuthorizationModule.OnEnter(Object source, EventArgs eventArgs) ퟍ System.Web.SyncEventExecutionStep.System.Web.HttpApplication⁌干ꉴ굺.Execute() System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) Version Information: Microsoft .NET Framework Version:1.1.4322.2407; ASP.NET Version:1.1.4322.2407 url:http://www.ureader.com/gp/1178-1.aspx