Help please - beginner with droplet troubles

I keep getting that the variable fileLocation isn’t defined…

on open draggedItems
repeat with currentFile in draggedItems

	tell application "QuickTime Player"
		set openedFile to open (currentFile as alias)
		set fileLocation to the location of openedFile
		set fileName to the name of openedFile
		set newFile to the name of openedFile & ".m4a"
		export openedFile to file newFile as MPEG4 using most recent settings
		close openedFile
	end tell
	display dialog fileLocation
end repeat

end open