rm -r $WORKSPACE_DIR/.metadata/.plugins/org.eclipse.core.runtime/.settings/
And re-launch the eclipse.
rm -r $WORKSPACE_DIR/.metadata/.plugins/org.eclipse.core.runtime/.settings/
And re-launch the eclipse.
Please use Eclipse update manager to install this plugin.Eclipse 3.3 - 3.4:Go to "Help -> Software Updates -> Find and Install... -> Search for new features to install -> Next -> New Remote Site..."Eclipse 3.5:Go to "Help -> Install new Software... -> Work with:"and use the http://andrei.gmxhome.de/eclipse/ as url.