Hi MacRuby, I built MacRuby 0.4 from SVN on OSX 10.5.6 (x86) successfully, but could not run the example applications. I found http://www.macruby.org/trac/ticket/232 and thought that perhaps I was having the same issue, though I couldn't find any additional discussion on that issue: $ open ./ABPresence.app LSOpenFromURLSpec() failed with error -10810 for the file /Users/jasonmorrison/dev/MacRuby-trunk/sample-macruby/bin/ABPresence.app. I eventually found out that the bundled executables were not chmodded +x, and doing so fixed it: $ pwd /Users/jasonmorrison/dev/MacRuby-trunk/sample-macruby/bin $ ls ABPresence.app/ CircleView.app/ EmbeddedMacRuby.app/ OutlineView.app/ PathDemo.app/ ViewModelDemo.app/ AnimatingViews.app/ DotView.app/ FlickrDemo.app/ PagePacker.app/ RoundTransparentWindow.app/ $ chmod u+x FlickrDemo.app/Contents/MacOS/FlickrDemo $ open ./FlickrDemo.app # and off we go... So, I signed up for Trac, went back to the ticket, with the intent of commenting on it. Alas! I saw: Trac detected an internal error: SubversionException: ('unable to open database file', 200030) So, this post to the mailing list is the best I can do, I think. I hope this helps someone! Cheers, -Jason -- Jason Morrison jason.p.morrison@gmail.com http://jayunit.net (585) 216-5657