Running Cairngen on a Mac

I've been using Cairngen for a while on my PC and it works great. It is a huge time saver for building Cairngorm based Flex applications. When I tried using it on my MacBook Pro, I found out that it's not quite as straight forward. There is a comprehensive discussion on the problem at Eric Feminella's blog (creator of Cairngen) which was a huge help. The issue is that Cairngen requires Java 6 which doesn't exist yet (officially) for OSX. You can get around this by downloading a few libraries and including them in your Ant classpath.

Here's what I had to do to get Cairngen running on OSX 10.4 / Eclipse 3.3.2. I'm assuming it would work for 10.5 too, but I haven't tested it.

Download the following jars:
I placed the jars in the Ant lib folder in my Eclipse installation: eclipse/plugins/org.apache.ant_1.7.0.../lib
Go to Eclipse->Preferences->Ant->Runtime->Classpath, select "Ant Home Entries" and add the three jars using the "Add External JARs..." button.

That's it. Hope you don't have to waste as much time figuring this out as I did!

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You’re currently reading “Running Cairngen on a Mac,” an entry by Ryan Phelan

Published:: 04.12.08 / 9pm

Category:: Design, Eclipse, Flex, Flex Builder, Workflow

Maverick 04.13.08 / 1am

Nice post… only if this would have come a few days back would have saved me a few hours. But, with this one I still get an error: “Problems opening file using a recorder entry”. Any clue?

Code generation (Cairngorm) « Scratch Pad 04.13.08 / 2am

[...] of the blogs also called out that you may need commons-logging-1.1.1.jar (through I already had that in my [...]

Ryan 04.13.08 / 11am

Maverick,

It sounds like you might have the wrong path set for your root.dir variable in the project.properties file. Make sure this path is correct, and make sure you are using forward slashes (/). You can double check this by navigating to your project root in Finder, and doing “Get Info” on that folder.

I was able to recreate your error by setting root.dir to a path that doesn’t exist, or one that doesn’t point to my actual project.

Hope that helps…

Jürgen 05.08.08 / 9am

thanks for this tutorial, now i got this tool to work! I have tried for hours before

kev 09.19.08 / 9pm

Thanks Ryan!

worked first time – OSX 10.5.5 / Eclipse 3.4.0

Josh 02.23.09 / 4pm

Thank you. I’m glad I didn’t have to figure this out myself.

Flug USA 03.19.09 / 5am

The same error is occuring on my screen, although the pragramm runs good.
thanks for your ado!

Rob 09.21.09 / 9am

I am still getting:

“build.xml:102: java.lang.UnsatisfiedLinkError: no swt-carbon-3349 or swt-carbon in swt.library.path, java.library.path or the jar file”

I am trying to do this in FlexBuilder3 and have tried putting the jar files in the way you suggested and also as Global entries.

I am on Snow Leopard if that makes a difference…

Thanks

Ryan 09.21.09 / 1pm

Rob, I haven’t seen that error before, but it’s possible that it is related to Snow Leopard. I’ll be upgrading in 2 weeks and I’ll post an update then.

Rob 09.22.09 / 7am

Hi again, I think it may have been related to something else, as it started working.

Not sure what I did to fix it, may have been permissions on the jar files

Sanjay 02.07.10 / 6pm

Rob – I am getting the same error. Did you ever figure out what caused your issues? I tried the permissions as you suggested, and I am still getting the error.

Ryan – Did you ever run into that issue when you upgraded to 10.6?

Rajesh 02.24.10 / 5pm

Hi all,

Am getting this error on 10.6 Snow Leopard:
…/dev/tools/Cairngen 2.1.1/build.xml:102: java.lang.UnsatisfiedLinkError: Cannot load 32-bit SWT libraries on 64-bit JVM

Did someone figure out a solutions for this?

Did someone figure out a solution for this?

Ryan 02.24.10 / 10pm

Sanjay & Rajesh,
I recently got a new MacBook Pro. I installed Eclipse 3.4.2 (Eclipse IDE for Java Developers 64 bit) and Flex Builder 3.0.2.214193. Cairngen ran with no issues right out of the box.

Are you guys running Snow Leopard on 32 bit macs, or are you running 32 bit Eclipse on a 64 bit mac? If not, can you give me some more information about your environment?

Rajesh 02.25.10 / 12pm

Hi Ryan,

My flex builder (the eclipse plugin) has a version: 3.0.214193, while my eclipse is a Java EE IDE for web developers (it’s got the webtools suite as well). Its version is 1.2.1.20090918-0703.

My macbook pro says that: ‘ 64-bit Kernel and Extensions: No’. So am assuming it’s a 32-bit machine and i just checked the system profiler, JavaVM says it runs on 64-bit extension. I think this is where the problem is.

Any ideas?

Ryan 02.25.10 / 1pm

Rajesh, try this: http://www.agynamix.de/blog/run-32bit-swt-apps-from-eclipse-in-snow-leopard/

Rajesh 02.25.10 / 3pm

Awesome. That link worked for me. Thanks Ryan!

Running Cairngen on a Mac

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