Have just made the move from Flash CS3 to CS5
When I open one of my cs3.fla’s and save it as a cs5.fla and then export I’m getting the following output message.
‘play’ is not a valid instance name. Please enter an identifier that is not a reserved keyword or function.
This only happens when I export it for the first time after opening it (if I close that file down and open it again I get the same message)
I dont have any clips with the instance name ‘play’ or anything like that
does anyone know why I’m getting this message??
I’m currently using AS2
Are you creating any MovieClips on the stage dynamically which might have the instance name of “play”?
nope, there isnt anything being create dynamically with the name ‘play’
also in another one of my files I’m getting this now:
‘0’ is not a valid instance name. Please enter an identifier that begins with an alphabetic character or other supported symbol.
I know for a fact that nothing I have starts with any number
Save the fla as xfl then do a search in DOMDocument.xml
Thanks for the suggestion
gave it a try but it turned up nothing 
Probably an idea to post up your .fla if able to so we can take a look