When I try to compile a modified visual basic 6 project I get an error

What is the code at the failure point?

It generally means that an Event procedure has been changed,. Either the visible code has been change by the programmer, or the hidden code of the object has been change - e.g. by an update to the .OCX or .DLL.

This will give the error because the button Click event does not have a parameter

Private Sub Command1_Click(i As Integer)
MsgBox "Hello"
End Sub

Sorry about the basic nature of my question but how can I check where the code is failing.
When I click on step into for debugging i immediatelly get this error.  How can I see which part of the code is failing ?

Highlight a line before where you think the error may be coming from, and press F9 to set a breakpoint. The "single-step" through the code by hitting F8 until the offending line of code is reached.

Excuse me, that should read:

In the IDE, highlight a line before where you think the error may be coming from, and press F9 to set a breakpoint. Then start the program. It will stop on the line you F9'ed. If it doesn't and errors, move the breakpoint further up in code. Anyway, once you get the program to stop on the breakpoint line, "single-step" through the code by hitting F8 until the offending line of code is reached.

I've set the breakpoint on top of the code but I immediatelly get the error.

And that upper line has not changed in comparision to the previous version of the project which did not give compile errors.

Is this an ActiveX DLL project? If so, see this:

http://support.microsoft.com/kb/190079

If you step into the code, and it immediately gives an error, what it the top line of the procedure?

E.g
Sub MyProc()  

If your code module has a line at the beginning which says Option Explicit, delete or comment this line. Then try single stepping through the code. This should allow you to identify the line that's generating the error.

Sorry.

If you have 'Option Explicit' at the top of the module, do not remove it. It is an important aid to checking variable spelling. It has nothing to do with your current problem.

If you don't have it, put it there - and make sure that it is put there automatically by setting the 'Require variable declaration' checkbox in the Options setting

itbabe,

You are very reticent with the details, but there was an importance change in the ADO model which could produce this error. It should now have worked itself out, but we need to know more.

Are you using ADO at all?

Dear

its your ADODB Version Problem Please Check Your ADODB Version

Just Open your Project and Go Project Menu->References

Dear

its your ADODB Version Problem Please Check Your ADODB Version

Just Open your Project and Go Project Menu->References