We *just* switched from Subversion to Mercurial. I didn't get a chance to test Jenkins on Mercurial before making the switch. Now - I am unable to start any builds. They all fail with the error above.
FYI - I am running Jenkins 1.459 on a Mac (Snow Leopard 10.6) w/ the Mercurial plugin 1.38. Here's a full snippet from the console output: $ hg clone --rev default --noupdate http://perforce.mok3.com/scm/hg/EveryScape /Users/Shared/Jenkins/Home/jobs/ESSDK/workspace ERROR: Failed to clone http://perforce.mok3.com/scm/hg/EveryScape java.io.IOException<http://stacktrace.jenkins-ci.org/search?query=java.io.IOException>: Cannot run program "hg": error=2, No such file or directory When I execute the same command outside of Jenkins, it works fine: macmini_05:~ cruisecontrol$ hg clone --rev default --noupdate http://perforce.mok3.com/scm/hg/EveryScape /Users/Shared/Jenkins/Home/jobs/ESSDK/workspace adding changesets adding manifests In the Jenkins configuration, under Mercurial, I have: Installation directory: /usr/local/bin Executable: /usr/local/bin/hg >From the shell, I can find hg: macmini_05:~ cruisecontrol$ which hg /usr/local/bin/hg I happened to notice this resolved issue which may fix my problem: https://issues.jenkins-ci.org/browse/JENKINS-11877 Unfortunately, this issue is not bundled into a plugin release yet. Also - I attempted to fetch the source code for this plugin and build a copy myself; however, the build was unsuccessful (apparently due to some tests failing). How can I resolve my problem in the meantime? Thanks, Chuck