View field in screen not found error

SOLVED

I have created a screen in a custom entity based on a view joining the custom entity table with another CRM table.  I added a field to the screen that is in the joined table.  When I try to display the screen using an asp page I get a field not found error.

I don't want to edit the joined table field, just display it.  Is there a way to achieve this?  I do need to edit other fields in the screen.