To compile to Code, go to the VBA window, on the menu bar there is a menu called
Debug under that there should be an option
Compile.
The screen shot you have shown, denotes that another error occurs while the error handler is busy trying to handle the error caused somewhere else. It could be anywhere/any of the methods,
FindPosition,
cdePopulate,
ClearTheScreen,
DoButtons.
Do you normally handle errors for every sub/function? If not Step through your code..
...however an error comes up saying 'cannot build a link between unbound forms'
Well this error is True in most sense, but at the same time is not entirely True.. You can build Links between the Master and Child, just have to be manual.. It cannot be done with the Wizard.