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Fixed: mx.accessibility:LabelAccImpl could not be found.

This came up while converting a Flex 3 AIR project to a Flex 4 AIR project.  Luckily, the solution is all in the publish settings.

Uncheck the box which says ‘Generate accessible SWF file’ and the error will go away.

Simple!

Link: Flex AutoComplete component

If you’re ever looking for an autocompletion component in the Flex framework, I’d strongly suggest you check this one out: http://hillelcoren.com/flex-autocomplete/ Quite simply it’s awesome, it’s fully featured and packs a helluva lot of options into such a small package.

I swapped an old ComoBox component for it just now, and it worked fantastically with no additional configuration.

Check out the demo for it here: http://web.me.com/hillelcoren/Site/Demo.html

Link: Advanced PDF eSeminar for ActionScript developers

“In short, you can build a GUI in Flex to skin the PDF and how the user can access the document contents. The PDF can contain images, text docs, or any Flex/Flash content (such as a video player or game). The Flex navigators are the GUI for how the user accesses the content of the PDF.”

Sound interesting? Check out more at http://www.flashcomguru.com/index.cfm/2009/11/11/pdf-for-flex-devs

Automating tasks in Flex Builder, with the help of a little something called ‘ANT’.

One of the great things about Flex Builder is that it’s developed on top of the already existing Eclipse IDE, and is itself just one of many uses the Eclipse project is put to.  Which means that many of the things you may want to do in your projects have already been explored by others.  One such thing is automated tasks.

ANT Tasks in Flex

Turns out there’s something called ANT, which “[... does a really good job at building things]“.  As Eclipse is the basis for Flex Builder, a lot of the plugins for Eclipse – and all the variants of it – work just fine in Flex Builder.  There’s a plugin for Eclipse which adds ANT support for example, and then further plugins which add even more task types to ANT, such as FTP support.
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Link: Form Validation in Flex

This sounds like a cool AS3/Flex library to try out for the next time you need to validate forms and data in Flex.  It’s an AS3 port of a Java library, supposedly geared towards unit testing, but also happens to be very good for form validation, as Joel Hooks points out in this article;

http://www.insideria.com/2009/11/validation-in-flex-with-hamcre.html