Archive for the ‘flex’ Category

Adding mx.* libraries to FDT

Wednesday, May 27th, 2009

For my most recent AS3 project, I’ve settled on developing in Eclipse/FDT and have set up the Flex compiler for building. In general, this works great, but every so often you run across a snag, as the FDT/Flex setup has its quirks.

Today, I added a SWF asset to my main class, like so:

[Embed(source="../../assets/frame.swf")]
[Bindable]
public var Frame:Class;

but upon compiling, mxmlc threw the following error:

Error: The definition of base class MovieClipLoaderAsset was not found.

It would appear that using the [Embed] metatag requires the presence of some classes you’re not going to get by default. 

A quick Spotlight search later revealed MovieClipLoaderAsset.as in the following location:
{Flex SDK}/frameworks/projects/framework/src/mx/core

Adding the framework source folder:
{Flex SDK}/frameworks/projects/framework/src to my project as a new linked library solved the problem and the compiler was happy again.

I leave this note here in the hope that it proves useful to someone else one day ;)

Posted in Flash, actionscript, eclipse, fdt, flex | 1 Comment »