How to resolve error connecting to undo manager of source file in Visual Studio 2008 SP1?

Visual Studio error: Error connecting to undo manager of source file ‘C:\Documents and Settings\kumard\My Documents\Visual Studio 2008\Projects\LANSW.Survey\Survey\Default.aspx.designer.cs’. Solution: In the solution explorer find the ‘Default.aspx.designer.cs’ and do the following: a. Remove Default.aspx.designer.cs b. Right click on Default.aspx and Convert to…