Question

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?

Answer 1

1. Export your project to zip
2. Update to FlashBuilder 4.1
3. Import your project from zip
4. Forget about your error)