Thanks for the quick reply Michel.

>Can you give us an example of one line that the project is making reference to?

These messages appear while the app is rebuilding. There is no reference to the location generating the message. The only options on the message prompt are "OK" or "Help" - so I guess they are warnings rather than errors, although clicking 'Help' tells me it's Error number 12.
I'm not getting these messages when running the application.

On looking more closely at the list of variables complained about, I see that they are all indexes of tables present in the data environments of the several forms I have developed. Does that suggest anything?


Martyn Thomson