R – Xcode’s shared workgroup ‘Unreachable’ after Snow Leopard/Xcode upgrade

iphoneosx-snow-leopardxcode

After upgrading to OS X 10.6 (Snow Leopard) and iPhone SDK 3.1 (with Xcode 3.2), Xcode's shared workgroup builds (distributed) can't seem to find or access other computers in our office.

Distributed builds worked perfectly in OS X 10.5 with iPhone SDK 3.0.

All the computers that have upgraded are now listed with a status of Unreachable. Even my own computer, artanis, is listed as Unreachable!

I've already tried all of the suggestions listed in Troubleshooting Distributed Network Builds. And none of us have the OS X firewall enabled.

Any suggestions?

Here's a screenshot:
Xcode Preferences Screenshot http://img170.imageshack.us/img170/3972/screenshot20090917at104.png

Best Answer

The solution seems to be to run Xcode in "32-bit" mode - you set this in the "Get Info" dialog in the Finder.