I am setting up my iphone project to run with hudson, my build script works fine locally, but when executing the following command on my snow leopard server mac
Schemes are per default not shared between users (and your build-server). As David mentions, you can share them, but you can also just invoke the targets instead, which are shared.
So instead of
xcodebuild -scheme Foobar
it'd be
xcodebuild -target Foobar
since schemes are normally named the same as the target.
Unfortunately xcodebuild depends on some per user files generated by the XCode. To fix this you can log in as your hudson user and run the XCode UI once. That will create the necessary files.
I'm currently trying to work around this, but copying the needed files into the source tree before building.
If you run xcodebuild and XCode is running in the background, xcodebuild will contact XCode to get the needed data. Since XCode is not running, you get the timeout.
checking the "shared" box in the "Manage Schemes" dialog moves the schemes to Project.xcodeproj/xcshareddata/xcschemes/Scheme.xcscheme
so even if you have a clean checkout that has never been opened via the xcode ui, this will work. we use this so that buildbot can build our apps