VB6 Compile error: Sub of Function not defined

Question

I started working in an old application for a client (hence i cannot add that much code). The application have some forms. On the main form i select a value from a dropdown list this calls a form to load. When this happens i'getting an error:

Compile error: Sub or function not defined

I started debugging and put some breakpoints and the program stops at the very:

Private Sub Form_Load()

It's a complex application with many forms and .bas files so i cannot add that much code since is not my application but in general is someone have heard about this and can give me orientation on what should be my next move please.

If i delete or comment Form_Load the program goes on but crashes later on since this sub process important data.

Regards!

Answer 1

I guess sometimes we have to load the solution again.

I think this was a matter of a faulty solution. I contacted the client and they sent an updated solution.

Thanks everybody for your help.