My projects in Eclipse Kepler were working just fine until I downloaded TestNG. Post TestNG download, I am unable to click on the run button for my code. After I click on run or even if I hover over on run the following error message is displayed.
An internal error occurred during: "Compute launch button tooltip". java.lang.IllegalArgumentException
If I uninstall testing all my scripts run. But as soon as I reinstall Testing the issue reappears.
I have tried Re-installing Eclipse, Changing Workspace, Restarting Eclipse, Creating new projects, Installing TestNg from Eclipse Marketplace as well as by Installing new software.
Eclipse Kepler Version: Kepler Service Release 2
Build id: 20140224-0627
Java JDK 1.7