I am trying to wrap DataDynamics ActiveReports 3.5 control by I following the tutorial about how to wrap ASP.NET control walkthrough - ComponentOne..

and got the following error:

The designer must create an instance of type 'Gizmox.WebGUI.Forms.Hosts.AspControlBoxBase' but it cannot because the type is declared as abstract.    
 
    
Instances of this error (1) 
 
1.   Hide Call Stack
 
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.Error(IDesignerSerializationManager manager, String exceptionText, String helpLink)
at System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, CodeTypeDeclaration declaration)
at System.ComponentModel.Design.Serialization.CodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager manager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.PerformLoad(IDesignerSerializationManager serializationManager)
at Microsoft.VisualStudio.Design.Serialization.CodeDom.VSCodeDomDesignerLoader.DeferredLoadHandler.Microsoft.VisualStudio.TextManager.Interop.IVsTextBufferDataEvents.OnLoadCompleted(Int32 fReload) 
 
 

--- what does it mean? .. please help..

thanks & regards