Weird Action Script Error

So I was doing some simple Timeline Navigation for a flash website, programming buttons to go to and play/stop etc.  Something I do all the time.  And everytime I rendered the file I get this error:

1026: Constructor functions must be instance methods.

I thought maybe I had messed something up with my actionscript that I wasn't noticing so I deleted it all to start again but when I rendered it out again I got the same error, even though at that time the only code I had at all was a couple stop commands.  I tried removing the stop commands out of curiosity and I STILL get that same error.  It's telling me there's a problem with my actionscript even though I don't have any actionscript.

Any ideas what the problem might be?

I tried googling it and the only thing I could find that might apply to me was that if I had an instance name or symbol name that was the same as a function command, but I went through and checked and there's nothing that I think would be used in actionscript.  To be extra safe I changed all the names anyway and still got the same error.

What could this be?!