Event procedure not Work

[gc]

I have a mainmenu form which has a lot event procedures. It worked fine, but suddenly it totally does not work. when run every event procedure on the form I got error massage:

"The expression On Click you entered as the event property setting produced the following error: Event procedure declaration does not match description of event having the same name.
* The expression may not result in the name of a macro, the name of a user-defined function, or [Event Procedure].
* There may have been an error evaluating the function, event, or macro."

I check the declaration and all the names, but can't find anything not match. In the same database event procedures of other forms work well.
What causes this error and how to correct it?
Please help and thank you in advance.
George

 

[JerryDennison]

You probably have a Reference problem. Open a module, goto Tools... References... see if any are marked missing. If so, uncheck these. If not, check an unmarked reference. Remember which one you checked. Close the module. Re-open the module and uncheck the one you just checked. Close the module. Try to re-run your code.