VS 2010 [RESOLVED] To prevent possible data loss before loading the designer, the following errors must

i'm using vb.net 2010 i use custom lib for button shape..every thing was going fine till i decided to change my app framenetwork from 3.5 to 4. then buttons that i have created are not showing any more in the form desgin and i get these errors and it dosn't even get fix when i change the framenetwork back to 3.5

Object of type 'System.Int32' cannot be converted to type 'System.Int16'.
The variable 'Recording' is either undeclared or was never assigned. this is the call stack
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.Error(IDesignerSerializationManager manager, String exceptionText, String helpLink)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSeri alizationManager manager, String name, CodeExpression expression)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSeri alizationManager manager, String name, CodeExpression expression)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeStatement(IDesignerSeria lizationManager manager, CodeStatement statement)

i also get this error
Duplicate declaration of member 'Recording'
and this is the call stack
at System.ComponentModel.Design.Serialization.DesignerSerializationManager.System.ComponentModel.Design .Serialization.IDesignerSerializationManager.CreateInstance(Type type, ICollection arguments, String name, Boolean addToContainer)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeInstance(IDesignerSerial izationManager manager, Type type, Object[] parameters, String name, Boolean addToContainer)
at System.ComponentModel.Design.Serialization.ComponentCodeDomSerializer.DeserializeInstance(IDesignerS erializationManager manager, Type type, Object[] parameters, String name, Boolean addToContainer)
at System.ComponentModel.Design.Serialization.CodeDomSerializerBase.DeserializeExpression(IDesignerSeri alizationManager manager, String name, CodeExpression expression)
at System.ComponentModel.Design.Serialization.CodeDomSerializer.DeserializeStatementToInstance(IDesigne rSerializationManager manager, CodeStatement statement)
at System.ComponentModel.Design.Serialization.CodeDomSerializer.Deserialize(IDesignerSerializationManag er manager, Object codeObject)
at System.Windows.Forms.Design.ControlCodeDomSerializer.Deserialize(IDesignerSerializationManager manager, Object codeObject)
at System.ComponentModel.Design.Serialization.TypeCodeDomSerializer.DeserializeName(IDesignerSerializat ionManager manager, String name, CodeStatementCollection statements)


now i have the code for that button and i also can see it in project properties but i can't see it on the form desgin
i include screenshot as well
how to fix this?

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