#12 Error

[Anonymous]

Encountering the following error in loading plugin into
eclipse

!MESSAGE Problems encountered loading the plug-in
registry.
!SUBENTRY 1 org.eclipse.core.runtime 2 1 Jan 11, 2005
16:47:03.650
!MESSAGE Plug-in "net.sf.wdte.ui" was disabled due to
missing or disabled prerequisite plug-in "org.eclipse.osgi".
!SUBENTRY 1 org.eclipse.core.runtime 2 1 Jan 11, 2005
16:47:03.650
!MESSAGE Plug-in "net.sf.wdte.js.ui" was disabled due to
missing or disabled prerequisite plug-in "net.sf.wdte.ui".

org.eclipse.osgi is from which plugin?

Thanks