Composer v6.7 getting crashed after adding few plug-ins

Composer v6.7 is getting crashed while launching it. Here is the exception log.

!SESSION 2012-11-27 09:36:27.501 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.6.0_35
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
Command-line arguments:  -os win32 -ws win32 -arch x86

!ENTRY org.eclipse.equinox.p2.reconciler.dropins 4 0 2012-11-27 09:36:32.550
!MESSAGE
!STACK 0
org.osgi.framework.BundleException: The bundle could not be resolved. Reason: Missing Constraint: Import-Package: org.eclipse.equinox.internal.provisional.configurator; version="0.0.0"
    at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:305)
    at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:355)
    at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1074)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:616)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:508)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:299)
    at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:489)
    at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:211)
    at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:321)

!ENTRY org.eclipse.osgi 4 0 2012-11-27 09:36:32.580
!MESSAGE Application error
!STACK 1
java.lang.RuntimeException: No application id has been found.
    at org.eclipse.equinox.internal.app.EclipseAppContainer.startDefaultApp(EclipseAppContainer.java:236)
    at org.eclipse.equinox.internal.app.MainApplicationLauncher.run(MainApplicationLauncher.java:29)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:382)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:549)
    at org.eclipse.equinox.launcher.Main.basicRun(Main.java:504)
    at org.eclipse.equinox.launcher.Main.run(Main.java:1236)

!ENTRY org.eclipse.osgi 2 0 2012-11-27 09:36:32.642
!MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.642
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.reconciler.dropins_1.0.0.v20080611.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.reconciler.dropins 2 0 2012-11-27 09:36:32.642
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.configurator_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.642
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.ui_1.0.0.v20080530-1237.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.ui 2 0 2012-11-27 09:36:32.642
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.configurator_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.642
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.console_1.0.0.v20080514-1900.jar was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.console 2 0 2012-11-27 09:36:32.642
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.configurator_0.0.0.

!ENTRY org.eclipse.osgi 2 0 2012-11-27 09:36:32.671
!MESSAGE The following is a complete list of bundles which are not resolved, see the prior log entry for the root cause if it exists:
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.672
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.console_1.0.0.v20080514-1900.jar [204] was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.console 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.configurator_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.672
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.director.app_1.0.0.v20080604.jar [207] was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.director.app 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.p2.console_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.672
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.reconciler.dropins_1.0.0.v20080611.jar [217] was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.reconciler.dropins 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.configurator_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.672
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.ui_1.0.0.v20080530-1237.jar [220] was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.ui 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.configurator_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.672
!MESSAGE Bundle reference:file:plugins\org.eclipse.equinox.p2.ui.sdk_1.0.0.v20080605-1731.jar [221] was not resolved.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.actions_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.dialogs_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.model_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.operations_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.policy_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.query_0.0.0.
!SUBENTRY 2 org.eclipse.equinox.p2.ui.sdk 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing imported package org.eclipse.equinox.internal.provisional.p2.ui.viewers_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2012-11-27 09:36:32.672
!MESSAGE Bundle reference:file:plugins\org.eclipse.pde.p2.ui_1.0.0.v20080604-2000.jar [269] was not resolved.
!SUBENTRY 2 org.eclipse.pde.p2.ui 2 0 2012-11-27 09:36:32.672
!MESSAGE Missing Constraint: Require-Bundle: org.eclipse.equinox.p2.ui; bundle-version="[1.0.0,2.0.0)"

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