It would help to know the exact error you're getting.
From your description, though, I suspect your Refernces collection has got
messed up. References problems can be caused by differences in either the
location or file version of certain files between the machine where the
application was developed, and where it's being run (or the file missing
completely from the target machine). Such differences are common when new
software is installed.
On the machine(s) where it's not working, open any code module (or open the
Debug Window, using Ctrl-G, provided you haven't selected the "keep debug
window on top" option). Select Tools | References from the menu bar. Examine
all of the selected references.
If any of the selected references have "MISSING:" in front of them, unselect
them, and back out of the dialog. If you really need the reference(s) you
just unselected (you can tell by doing a Compile All Modules), go back in
and reselect them.
If none have "MISSING:", select an additional reference at random, back out
of the dialog, then go back in and unselect the reference you just added. If
that doesn't solve the problem, try to unselect as many of the selected
references as you can (Access may not let you unselect them all), back out
of the dialog, then go back in and reselect the references you just
unselected. (NOTE: write down what the references are before you delete
them, because they'll be in a different order when you go back in)
I have developed a data base over a period of time.
I only used macros. When I attempted to add a calender and get a compiling
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