Eclipse 3.6.2 PDT problems

[Apparel]

I hope someone would be able to help me here:

I have an error at the start of eclipse and when I do window-->preferences-->php-->debug

Here is my log file:

!SESSION 2011-08-13 15:36:42.849 -----------------------------------------------
eclipse.buildId=M20110210-1200
java.version=1.6.0_22
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=linux, ARCH=x86, WS=gtk, NL=en_GB
Command-line arguments: -os linux -ws gtk -arch x86

!ENTRY org.eclipse.ui 4 4 2011-08-13 15:38:11.379
!MESSAGE Referenced part does not exist yet: org.eclipse.jdt.ui.PackageExplorer.

!ENTRY org.eclipse.osgi 4 0 2011-08-13 15:38:57.995
!MESSAGE An error occurred while automatically activating bundle org.eclipse.php.debug.core (16994).
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.php.internal.debug.core.PHPDebugPlugin .start() of bundle org.eclipse.php.debug.core.
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.startActivator(BundleContextImpl.java:806 )
at org.eclipse.osgi.framework.internal.core.BundleCon textImpl.start(BundleContextImpl.java:755)
at org.eclipse.osgi.framework.internal.core.BundleHos t.startWorker(BundleHost.java:370)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.start(AbstractBundle.java:284)
at org.eclipse.osgi.framework.util.SecureAction.start (SecureAction.java:417)
at org.eclipse.osgi.internal.loader.BundleLoader.setL azyTrigger(BundleLoader.java:265)
at org.eclipse.core.runtime.internal.adaptor.EclipseL azyStarter.postFindLocalClass(EclipseLazyStarter.j ava:106)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findLocalClass(ClasspathManager.java:453)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.findLocalClass(DefaultClassLoader.java:216)
at org.eclipse.osgi.internal.loader.BundleLoader.find LocalClass(BundleLoader.java:393)
at org.eclipse.osgi.internal.loader.BundleLoader.find ClassInternal(BundleLoader.java:469)
at org.eclipse.osgi.internal.loader.BundleLoader.find Class(BundleLoader.java:422)
at org.eclipse.osgi.internal.loader.BundleLoader.find Class(BundleLoader.java:410)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.loadClass(DefaultClassLoader.java:107)
at java.lang.ClassLoader.loadClass(ClassLoader.java:2 66)
at org.eclipse.osgi.internal.loader.BundleLoader.load Class(BundleLoader.java:338)
at org.eclipse.osgi.framework.internal.core.BundleHos t.loadClass(BundleHost.java:232)
at org.eclipse.osgi.framework.internal.core.AbstractB undle.loadClass(AbstractBundle.java:1197)
at org.eclipse.core.internal.registry.osgi.RegistrySt rategyOSGI.createExecutableExtension(RegistryStrat egyOSGI.java:174)
at org.eclipse.core.internal.registry.ExtensionRegist ry.createExecutableExtension(ExtensionRegistry.jav a:904)
at org.eclipse.core.internal.registry.ConfigurationEl ement.createExecutableExtension(ConfigurationEleme nt.java:243)
at org.eclipse.core.internal.registry.ConfigurationEl ementHandle.createExecutableExtension(Configuratio nElementHandle.java:55)
at org.eclipse.php.internal.debug.daemon.communicatio n.CommunicationDaemonRegistry$CommunicationDaemonF actory$1.run(CommunicationDaemonRegistry.java:190)
at org.eclipse.core.runtime.SafeRunner.run(SafeRunner .java:42)
at org.eclipse.php.internal.debug.daemon.communicatio n.CommunicationDaemonRegistry$CommunicationDaemonF actory.createDaemon(CommunicationDaemonRegistry.ja va:186)
at org.eclipse.php.internal.debug.daemon.communicatio n.CommunicationDaemonRegistry.getBestMatchCommunic ationDaemons(CommunicationDaemonRegistry.java:114)
at org.eclipse.php.internal.debug.daemon.DaemonPlugin .startDaemons(DaemonPlugin.java:85)
at org.eclipse.php.internal.debug.daemon.DaemonPlugin $1.run(DaemonPlugin.java:67)
at org.eclipse.core.internal.jobs.Worker.run(Worker.j ava:54)
Caused by: java.lang.NoClassDefFoundError: org/w3c/dom/ElementTraversal
at java.lang.ClassLoader.defineClass1(Native Method)
at java.lang.ClassLoader.defineClass(ClassLoader.java :634)
at org.eclipse.osgi.internal.baseadaptor.DefaultClass Loader.defineClass(DefaultClassLoader.java:188)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.defineClass(ClasspathManager.java:580)
at org.eclipse.osgi.baseadaptor.loader.ClasspathManag er.findClassImpl(ClasspathManager.java:550)


Please help I know its a mising package what package it is what I need to know and install. Fedora 15