[sugar] Joyride build errors

[Ed Stoner]

At 
http://xs-dev.laptop.org/~cscott/olpc/streams/joyride/build258/devel_jffs2/build.log

I see:

No activity matches FlipSticks
No activity matches CartoonBuilder

I am the developer of both of these activities and believe I've done 
everything I am supposed to to get them included.  I'm obviously missing 
something though.  Can anyone explain what these errors mean and what I 
should be doing to resolve them?

Thanks.

-Ed Stoner