Mentionable ideas and projects in the digital space

The popular ActionSript 3 Core Library is still a valuable help in many Flex projects. Started as library to be used with Flex 2 it is actively developed and can still be used with the current Flex 4.x SDKs, and of course Flash Builder 4.
Unfortunately it is not obvious to use it in Flash Builder 4 since there is no as3corelib.swc compiled by Flex 4.x (or it is so hard to find that I couldn’t work it out).

So let’s build the library by ourself:

1. Download the source archive (Note: the project moved from Google Code to github).
2. Unpack it to a folder.
3. In Flash Builder 4 select “File” > “New” > “Flex Library-Project”
4. Enter a name (e.g. “as3corelib”)
5. Select the directory of the unpacked projects
6. Select in the section “Flex SDK-Version” Flex 4.1 (or higher), if this is not your standard SDK.
7. And this is important: Select “Include AIR-Runtime-Libraries” – otherwise you’ll get include errors
8. Click on the “Done” button
9. Now you’ve got a brand new Flex library project
10. Launch the “application” by “Run” > “Run main”
11. This should result to a fresh compiled “as3corelib.swc” in your bin path of the unpacked as3corelib source archive