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Eclipse 3.4.3 Start Problem...ClassNotFoundException:org.eclipse.core.runtime.adaptor.EclipseStarter

Rahul Nair
Ranch Hand

Joined: Dec 01, 2007
Posts: 138

When i try to run my eclipse i have got the exception in log file:

!SESSION Fri May 14 12:15:19 IST 2010 ------------------------------------------
!ENTRY org.eclipse.equinox.launcher 4 0 2010-05-14 12:15:19.421
!MESSAGE Exception launching the Eclipse Platform:
java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter
at$ Source)
at Method)
at Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(
at org.eclipse.equinox.launcher.Main.basicRun(

Can you please tell me what is wrong with my configuration file ?

Rahul Nair
Ranch Hand

Joined: Dec 01, 2007
Posts: 138

Any hint for "java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter" Exception thrown at Eclipse Start Up ?
Still i have not got any solution for this problem ?

Please help me...!


Peter Johnson

Joined: May 14, 2008
Posts: 5852

Sounds like your Eclipse installation got corrupted. I suggest reinstalling.

According to my search for the class, it should be in:
That is the Eclipse 3.5 location, the JAR file name will be different for other versions.

JBoss In Action
I agree. Here's the link:
subject: Eclipse 3.4.3 Start Problem...ClassNotFoundException:org.eclipse.core.runtime.adaptor.EclipseStarter
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