I think there's a problem in the beta, you should get the latest version from CVS.
I downloaded the 3.0.0beta.zip file off of sourceforge yesterday:
Do I need to build it from source or is there another link somewhere?
I'm not sure,, but I think the release on sourceforge is older than the fix for the deployer, so you will get the same error.
If you get the version from CVS you're sure to get the latest version always. Is a big download the first time, but the updates are differential, so the next times will be fast.
And you will get the latest modifications from developers :)
With the current version on CVS you can build 3.0.0beta2
Thanks Ferran. I'll give it a shot.