Vít Tự Khoan

Server Error in '/' Application.

Value cannot be null.Parameter name: String

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.ArgumentNullException: Value cannot be null.Parameter name: String 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:
[ArgumentNullException: Value cannot be null. Parameter name: String] System.Number.StringToNumber(String str, NumberStyles options, NumberBuffer& number, NumberFormatInfo info, Boolean parseDecimal) +14783912 System.Number.ParseInt32(String s, NumberStyles style, NumberFormatInfo info) +172 WebManager.MvcApplication.Session_Start(Object sender, EventArgs e) +157 System.Web.SessionState.SessionStateModule.CompleteAcquireState() +364 System.Web.SessionState.SessionStateModule.BeginAcquireState(Object source, EventArgs e, AsyncCallback cb, Object extraData) +1226 System.Web.AsyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +625 System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step) +195 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +128
Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.7.4081.0

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