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Server Error in '/' Application.


Request is not available in this context

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.HttpException: Request is not available in this context

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:

[HttpException (0x80004005): Request is not available in this context]
System.Web.HttpContext.get_Request() +8882736
DouranPortal.Common.Exceptions.Logger.Log(Int32 logLevel, LogType logType, String extraInfo, Exception exc) +230
DouranPortal.Common.Exceptions.Logger.Log(Int32 logLevel, LogType logType, Exception exc) +18
DouranPortal.Global.Application_Start() +1064

[HttpException (0x80004005): Request is not available in this context]
System.Web.HttpApplicationFactory.EnsureAppStartCa lledForIntegratedMode(HttpContext context, HttpApplication app) +2761402
System.Web.HttpApplication.RegisterEventSubscripti onsWithIIS(IntPtr appContext, HttpContext context, MethodInfo[] handlers) +128
System.Web.HttpApplication.InitSpecial(HttpApplica tionState state, MethodInfo[] handlers, IntPtr appContext, HttpContext context) +188
System.Web.HttpApplicationFactory.GetSpecialApplic ationInstance(IntPtr appContext, HttpContext context) +295
System.Web.HttpApplicationFactory.GetPipelineAppli cationInstance(IntPtr appContext, HttpContext context) +56
System.Web.Hosting.PipelineRuntime.InitializeAppli cation(IntPtr appContext) +231

[HttpException (0x80004005): Request is not available in this context]
System.Web.HttpRuntime.FirstRequestInit(HttpContex t context) +8986035
System.Web.HttpRuntime.EnsureFirstRequestInit(Http Context context) +85
System.Web.HttpRuntime.ProcessRequestNotificationP rivate(IIS7WorkerRequest wr, HttpContext context) +333

مواجه میشه
من یه بار netframewrok ام رو از 2 کردم 4 و دوباره کردم 2 اینجوری شد ، کسی میتونه راهنمایی کنه چه کنم؟