I am trying to use Spring STS for as IDE for my mapreduce programs. But when ever I try to launch STS.exe, I am getting main class of "org.eclipse.equinox.launcher_1.4.0.v20161219-1356.jar" not found error. But I can see the the missing jar file in the path. Is anybody faced the same problem in the past? Do you have any idea what went wrong. Even I restarted the system and getting the same error. I attached the screen shot of the issues.