Flex Builder 3 thinks it’s Flex Builder 2?!

Wietse Veenstra — Fri, 14 Mar 2008 09:05:35 +0000

Last week I requested a free student license for Flex Builder 3 from Adobe, and this week I found it in my mailbox. After downloading the Flex Builder 3 trail version from the Adobe website and applying my license key to it, it said I now have the Education version. But the strange thing is that when I open the ‘About Adobe Flex Builder 3…’ window, it tells me I have Flex Builder 2 and then freezes the entire application (see screen shot below)! All of the menu buttons in the top bar are gone and the application stops responding to anything. I had to restart Flex Builder in order to continue my work.

After installing the trail version of Flex Builder 3 on my Windows XP machine this afternoon I checked the same window. At first I didn’t apply my license key to it so it was still in trail mode. No strange things, just the normal black ‘About Adobe Flex Builder 3′ window. But after applying the student license key the window was corrupted again! The only difference between the Windows and OS-X version was that on the Windows machine it didn’t completely crash my Flex Builder, and I was able to return to the development screen by clicking the corrupted window.

Apparently there is a little bug in the educational license system in Flex Builder 3.

Click screen shot for a larger version…

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Flex ListBase scroll vertically error

Wietse Veenstra — Tue, 27 Mar 2007 10:08:45 +0000

I’m working on a shopping cart where I can drag items into a List using a custom itemRenderer. Everything goes perfect until I add more items then the viewable area of the list. When I scroll vertically, both with the scrollbar and with the mousewheel, I get the #1010 ListBase:scrollVertically error and the items render above and below the list area. I’ve searched through the flexcoders mailing archive of Yahoo and on the internet but all the possible solutions I found so far don’t seem to help. I tried setting the width of the itemRenderer to a fixed width in stead of 100%, setting the rowHeight of the list component and removing the variableRowHeight=”true”. Does anyone have any idea on how to solve this error? It seems to be a Flex bug. Here is my exact error (on mouseWheel scroll): [quickcode:noclick]TypeError: Error #1010: A term is undefined and has no properties. at mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::scrollVertically() at mx.controls.listClasses::ListBase/set verticalScrollPosition() at mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::mouseWheelHandler() at mx.controls::List/mx.controls:List::mouseWheelHandler()[/quickcode] The error I get when I scroll with the scrollbar is as follows: [quickcode:noclick]TypeError: Error #1010: A term is undefined and has no properties. at mx.controls.listClasses::ListBase/mx.controls.listClasses:ListBase::scrollVertically() at mx.controls::List/mx.controls:List::scrollHandler() at flash.events::EventDispatcher/flash.events:EventDispatcher::dispatchEventFunction() at flash.events::EventDispatcher/dispatchEvent() at mx.core::UIComponent/dispatchEvent() at mx.controls.scrollClasses::ScrollBar/http://www.adobe.com/2006/flex/mx/internal::dispatchScrollEvent() at mx.controls.scrollClasses::ScrollThumb/::mouseMoveHandler()[/quickcode] Any help would be appreciated greatly!

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Flex Builder 3 thinks it’s Flex Builder 2?!

Flex ListBase scroll vertically error