I have some code that uses an ArrayCollection, it imports:
import mx.collections.ArrayCollection;
then:
static protected var myAC:ArrayCollection = new ArrayCollection();
Seems straightforward, but in my project the import (and thus ArrayCollection) are not found/defined!
I am using Flash Builder 4 (Flex 4) - it's an ActionScript project, and project properties is set to Flex SDK 4.0. Everything should be default settings.
When I type "import mx." and press control-space (autocomplete), I see a list of choices such as core, geom and several others, but no 'collections'.
I must be missing something?