Server Error in '/' Application.

Unrecognized Guid format.

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.FormatException: Unrecognized Guid format.

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:


[FormatException: Unrecognized Guid format.]
   System.GuidResult.SetFailure(ParseFailureKind failure, String failureMessageID, Object failureMessageFormatArgument, String failureArgumentName, Exception innerException) +3969137
   System.Guid.TryParseGuid(String g, GuidStyles flags, GuidResult& result) +546
   System.Guid..ctor(String g) +139
   TWAMBIT.MarketingManager.autoresponder.CreateAutomaticTweetList(String ScreenName, String listtype, String userid) in C:\Users\DarthSithius\Documents\Visual Studio 2015\Projects\TWAMBIT\TWAMBIT\MarketingManager\autoresponder.aspx.cs:63
   TWAMBIT.MarketingManager.autoresponder.Page_Load(Object sender, EventArgs e) in C:\Users\DarthSithius\Documents\Visual Studio 2015\Projects\TWAMBIT\TWAMBIT\MarketingManager\autoresponder.aspx.cs:32
   System.Web.UI.Control.OnLoad(EventArgs e) +108
   System.Web.UI.Control.LoadRecursive() +90
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1533


Version Information: Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.8.4494.0