[DotNetDevelopment] The base class includes the field 'ctlProductField', but its type (Custom.Admin.UI.Product.Controls.ProductField) is not compatible with the type of control (Custom.Admin.UI.Product.Controls.ProductField).

[Stephen]

I added a new control to my asp.net solution and get the following
error: The base class includes the field 'ctlProductField', but its
type (Custom.Admin.UI.Product.Controls.ProductField) is not compatible
with the type of control
(Custom.Admin.UI.Product.Controls.ProductField). As you can see the
two types they are saying are not compatible are the same class. Any
ideas as to why this is happening? Thanks.