I have a TestNG setup running on Eclipse Indigo 20120216-1857 and TestNG for Eclipse v2.0. Dev environment is Mac OSX 10.8.2. Target is a web server running on Ubuntu 12.04.
Error: 'Couldn't contact the RemoteTestNG client. Make sure you don't have an older version of testng.jar on your class path.'
This error only happens when i'm running selenium scripts. not on my other api oriented test cases. I have selenium-server-standalone-2.25.0.jar running.
This same setup is working on my windows 7 dev environment.
This is a brand new eclipse setup and workspace on the mac.