Comments on: 1017: The definition of base class UIComponent was not found.

By: Santa Claus

Santa Claus — Tue, 05 Jun 2007 15:35:55 +0000

I had the same problem and came to the same conclusion. I don’t know why the guys at Adobe did not add that path to the settings ? Maybe they just forgot about it…
As an ActionScript 3.0 editor, I am using FlashDevelop 3 (you can download it from www.flashdevelop.org). And at the AS3Context plugin settings, it has that path added in the User Classpath setting.
How come a few guys working on an “freeware” project managed to include that path, but the guys working at the mighty Adobe, “forgot” about it ?

By: Goran Grubic

Goran Grubic — Sat, 19 Jan 2008 04:38:33 +0000

I’ve solved similar problem with FLVComponent by adding it to stage in FLA that calling my classes which extends that component. It’s ugly solution but at that moment I couldn’t fild better…

By: rich

rich — Mon, 18 Feb 2008 21:21:31 +0000

You can ‘permanently’ change the class path Flash CS3 uses for all apps by going to Edit > Preferences > ActionScript, ActionScript 3.0 settings…

Then add the following path:
$(AppConfig)/Component Source/ActionScript 3.0/User Interface

Save it, and from now on Flash should be able to find the ‘fl.core’ package!

By: sean

sean — Mon, 06 Apr 2009 22:56:16 +0000

I am running Flash CS4, and unfortunately it seems like i don’t have much in the ActionScript 3.0 directory except 1 file: EnabledWarnings.xml

I can’t seem to find the User Interface/ directory ….. grrrr

By: james

james — Tue, 21 Apr 2009 12:26:41 +0000

sean,

same issue here, found the dir, it’s \Adobe Flash CS4\Common\Configuration\Component Source\ActionScript 3.0\User Interface\
in case you hadn’t yet. Couldn’t call it a major release without rearranging everything :)

By: demiurgu

demiurgu — Thu, 23 Apr 2009 15:30:35 +0000

=))

good point sean :))

By: Thomas JT

Thomas JT — Sun, 26 Apr 2009 13:33:08 +0000

Same problem with CS4 - If u wadd the following it works fine:

C:\Program Files\Adobe\Adobe Flash CS4\Common\Configuration\Component Source\ActionScript 3.0\User Interface

If anyone needs it

Thomas JT

By: JAson

JAson — Mon, 25 May 2009 14:40:27 +0000

I tried adding both seperatetly to test,

C:\Program Files\Adobe\Adobe Flash CS4\Common\Configuration\Component Source\ActionScript 3.0\User Interface
did not work

and

$(AppConfig)/Component Source/ActionScript 3.0/User Interface
does not work

I ended up taking the UI as file from fl.core and putting in the custom class file of mine and linked to it and it works ok.
I guess thie is just more adob-ugs

By: TatiPiruli

TatiPiruli — Thu, 19 Nov 2009 15:29:27 +0000

I have the same error, but I’m using Flex Builder 3 and I don’t know how to add it. Any ideas?

thanks in advance

By: Nate

Nate — Tue, 15 Dec 2009 17:41:48 +0000

Thanks a lot for the info and help. FYI, on CS4 and OSX, the folder is at:

/Applications/Adobe Flash CS4/Common/Configuration/Component Source/ActionScript 3.0/User Interface