TeamCity returns No such file to load -- rubygems (LoadError) but terminal runs fine

Question

I've just setup 3 osx agents to run the CI for our ruby project. 2 of these agents are running our specs perfectly, starting their agents correctly etc. The third machine constantly returns No such file to load -- rubygems (LoadError). I have navigated to the work folder (the check out folder for the project) and i can run the commands i need the CI to run (specifically a rake task rake spec) and they run fine. It would seem my agent is picking up an incorrect version of ruby or rubygems somehow

which ruby returns (on all machines) /opt/local/bin/ruby which gems returns (on all machines) /opt/local/bin/gem

i'm not sure what to try next?

Answer 1

Try checking whether /opt/local/bin/ is in the PATH environment variable when your agents run. To do this you could make a simple agent that just writes ENV['PATH'] out to a file, without pulling any libraries.

Answer 2

If these are launchd agents, keep in mind that launchd does not feed your scripts the same environment variables you're going to get by logging into a shell in Terminal.