Flash builder 4.5 + mobile apps + mx components : error#1014

Hi everyone,
I found about the capabilities of Flex/Air a few weeks ago and I started experimenting. I'm interested in the mobile apps in particular.
I downloaded the final release of Flash Builder and started to "code" a few things (I am fairly new to ActionScript too).
The thing is I have errors when launching the mobile apps on an emulator or on my Desire HD.
Typical example is this app from Ryan Stewart : http://blog.digitalbackcountry.com/2011/03/slides-and-assets-from-adobe-refresh/
I tried to run his CollaborationMobile App (as I want to work with LCCS) onto a device emulator thanks to Flash Builder but I get the following errors :
VerifyError: Error #1014: Class mx.containers::Canvas could not be found.
     at flash.display::MovieClip/nextFrame()
     at mx.managers::SystemManager/deferredNextFrame()[E:\dev\hero_private\frameworks\projects\fr amework\src\mx\managers\SystemManager.as:284]
     at mx.managers::SystemManager/preloader_preloaderDocFrameReadyHandler()[E:\dev\hero_private\ frameworks\projects\framework\src\mx\managers\SystemManager.as:2633]
     at flash.events::EventDispatcher/dispatchEventFunction()
     at flash.events::EventDispatcher/dispatchEvent()
     at mx.preloaders::Preloader/timerHandler()[E:\dev\hero_private\frameworks\projects\framework \src\mx\preloaders\Preloader.as:515]
     at flash.utils::Timer/_timerDispatch()
     at flash.utils::Timer/tick()
VerifyError: Error #1014: Class com.adobe.coreUI.controls::RichTextArea could not be found.
     at flash.display::MovieClip/nextFrame()
     at mx.managers::SystemManager/deferredNextFrame()[E:\dev\hero_private\frameworks\projects\fr amework\src\mx\managers\SystemManager.as:284]
     at mx.managers::SystemManager/preloader_preloaderDocFrameReadyHandler()[E:\dev\hero_private\ frameworks\projects\framework\src\mx\managers\SystemManager.as:2633]
     at flash.events::EventDispatcher/dispatchEventFunction()
     at flash.events::EventDispatcher/dispatchEvent()
     at mx.preloaders::Preloader/timerHandler()[E:\dev\hero_private\frameworks\projects\framework \src\mx\preloaders\Preloader.as:515]
     at flash.utils::Timer/_timerDispatch()
     at flash.utils::Timer/tick()
and a few others...
I have no clue of the reason of these errors...
Thanks for the help

Try to avoid using MX components in mobile apps.

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Message was edited by: kennethGilpin

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