Resolving Component libs with Flex SDK mxmlc

Question

I'm new to Flex SDK and trying to implement a simple project using Doug Mccune's CoverFlow widget. Most of the documentation out there on how to do this assumes that one is using Adobe's FlexBuilder product, which is a $250 Eclipse plug-in that I'd rather avoid buying. The problem I'm having is simply getting Doug's swc file, which is the binary version of his component lib, to be recognized by mxmlc, the Flex SDK project compiler. I keep getting error messages such as

Error: Could not resolve to a component installation

and

Error: Type was not found or was not a compile-time constant: CoverFlow.

I have also tried the type "VideoCoverFlow" as I am pretty sure that these types are defined in Doug's lib. Alas, I am stuck on figuring out where I've gone wrong.

The following is the full text for my mxml project file, called coverflow.mxml.

<?xml version="1.0" encoding="utf-8"?>

<mx:Application
    xmlns:mx="http://www.adobe.com/2006/mxml"
    xmlns:local="*"
    height="100%"
    width="100%"
    layout="absolute">

    <local:CoverFlow
        id="CoverFlow"
        horizontalCenter="0"
        verticalCenter="0"
        borderThickness="10"
        borderColor="#FFFFFF"
        width="100%"/>

</mx:Application>

I am trying to compile it with the following command:

c:\flex_sdk_3\bin\mxmlc.exe -compiler.source-path=lib coverflow.mxml

I have also tried moving the CoverFlow_lib.swc file into the same dir as the mxml file instead of using the source-path argument, but that does not seem to make a difference.

I would gladly go RTFM if somebody could be so kind as to point me in the direction of the proper docs. There are related Stack Overflow questions here and here.

Thank you!

---

Update: I have changed my build command to the following:

mxmlc -library-path+=lib coverflow.mxml

And I also tried the following:

mxmlc -library-path+=CoverFlow_lib.swc coverflow.mxml

With the swc file in the same dir as the mxml file. However, I'm still getting the same errors.

There's also a video here showing the same library that I'm trying to use, but in Flex Builder. Unfortunately, it doesn't show how to use mxmlc.

I've also tried stripping down my mxml to simply,

<mx:Application
    xmlns:mx="http://www.adobe.com/2006/mxml"
    xmlns:local="*" >

    <local:VideoCoverFlow />

</mx:Application>

Libretto

I downloaded the cover flow examples from the site you linked and they do not include a class named VideoCoverFlow. Chances are someone set up a manifest to use them in flex. you need to set the xmlns:local="com.dougmccune.containers" and then use local:VCoverFlowContainer – Edgerton

Answer 1

Here is a link to the mxmlc command line tool docs from Adobe and a direct link to the command line options reference. I also find mxmlc -help list to be a good place to start.

As another poster recommended, you really want to use library-path to add the path to the directory that contains the swc file. Use the += operator to make sure you don't overwrite the previous values

e.g.)

c:\flex_sdk_3\bin\mxmlc.exe -library-path+=lib coverflow.mxml

Edgerton

Answer 2

If it is an swc shouldn't you be using library-path rather than source-path and referencing the swc?

Wain

Answer 3

I finally got my project to build. The use of library-path was part of the solution, but I also had to take a closer look at the Doug Mccune library's sources so I could use the correct path information and type names in my mxml.

The winning command line is

mxmlc -library-path+=lib coverflow.mxml

And the working mxml is

<?xml version="1.0" encoding="utf-8"?>

<mx:Application
    xmlns:mx="http://www.adobe.com/2006/mxml"
    xmlns:coverflow="com.dougmccune.coverflow.*"
    xmlns:containers="com.dougmccune.containers.*"
    xmlns:local="*" >

    <containers:CoverFlowContainer id="flow" />

</mx:Application

For some reason my container complains if I use id="coverflow". I get an error saying that the id name and the type name aren't allowed to be the same. If anyone can explain that to me, I'd love to understand what's going on there.

Thanks again for the help, Simon and James.

Libretto

I think it is because you have a xmlns named coverflow so you are filling the files symbol table with two symbols with the same name. You do not need the xmlns:coverflow or the xmlns:local – Edgerton