Visual Studio 2008 designer throws Error

Question

We have a project that was migrated from VS 2005 to 2008.

One form is using usercontrol. When I open this form I get following message from the designer:

The variable '_usercontrol' is either undeclared or was never assigned.

at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.Error(IDesignerSerializationManager manager, String exceptionText, String helpLink) at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression) at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSerializationManager manager, String name, CodeExpression expression) at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSerializationManager manager, CodeStatement statement)

If I ignore this error and continue, the usercontrol declaration is removed from the designer. Can someone please advise how I can resolve this problem?

Answer 1

This may be of help:

The variable '<variable name>' is either undeclared or was never assigned