Flash variables will not pass on enterFrame

Question

I currently have the following code setup to pass variables to a flash when a button is clicked:
on click
     flashSprite = sprite("videoplayer")
     rootRef = flashSprite.getVariable("root1", false)
     rootRef.setUpDoc(the moviePath&"xml"&dirPath&currentMovie&"_nav.xml", the moviePath&"xml"&dirPath&currentMovie&".xml", the moviePath&"Src"&dirPath&currentMovie&".f4v")
end
The code works perfectly when called with "on click" but if I take this code and put it in the behavior frame and change "on click" to "on enterFrame" it give me the error:
"Script error: Variable used before assigned a value
rootRef.setUpDoc(the moviePath&"xml"&dirPath&currentMovie&"_nav.xml", the moviePath&"xml"&dirPath&currentMovie&".xml",
the moviePath&"Src"&dirPath&currentMovie&".f4v")"
Why does it work with "on click" but on with "on enterFrame"?
Can anyone help me with this?

Answer 1

This problem is probably related to the issue of Flash sprites not being fully instantiated on beginSprite. Delaying running your code should fix the problem. Something like the following untested code may work.
on beginSprite me
  tmp = timeout().new("DelaySetupDoc", 1, #DelaySetupDoc, me)
end beginSprite
on DelaySetupDoc me, timeob
  flashSprite = sprite("videoplayer")
  rootRef = flashSprite.getVariable("root1", false)
  rootRef.setUpDoc(the moviePath&"xml"&dirPath&currentMovie&"_nav.xml", the moviePath&"xml"&dirPath&currentMovie&".xml", the moviePath&"Src"&dirPath&currentMovie&".f4v")
end DelaySetupDoc