Hi! I'm trying to migrate a Custom Control from VS 2005 to VS 2008 (C#). I succesfully migrate it but when I try to open a control that inherits for this in designer, Visual Studio throws this message: Value cannot be null. Parameter name: instance Instances of this error (1) 1. Hide Call Stack at System.ComponentModel.TypeDescriptor.AddAttributes(Object instance, Attribute[] attributes) at Microsoft.VisualStudio.Design.VSDesignSurface.CreateDesigner(IComponent component, Boolean rootDesigner) ... I don't know how to solve this error. Any advice? Thank you!
