Spring Source Tool Suite (Error de instalación)

Instale spring source tool suite pero me da el siguiente error podrian echarme una mano

!SESSION 2011-01-06 20:40:30.985 -----------------------------------------------
eclipse.buildId=2.5.1.201011111000-RELEASE
java.version=1.6.0_22
java.vendor=Sun Microsystems Inc.
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=es_MX
Framework arguments: -product com.springsource.sts.ide
Command-line arguments: -os win32 -ws win32 -arch x86 -product com.springsource.sts.ide

!ENTRY org.eclipse.equinox.p2.core 4 0 2011-01-06 20:40:32.624
!MESSAGE Provisioning exception
!STACK 1
org.eclipse.equinox.p2.core.ProvisionException: Unknown repository type at file:/C:/springsource/sts-2.5.1.RELEASE/configuration/org.eclipse.osgi/bundles/377/data/listener_1925729951/.
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.fail(AbstractRepositoryManager.java:391)
at org.eclipse.equinox.internal.p2.repository.helpers.AbstractRepositoryManager.doCreateRepository(AbstractRepositoryManager.java:280)
at org.eclipse.equinox.internal.p2.metadata.repository.MetadataRepositoryManager.createRepository(MetadataRepositoryManager.java:41)
at org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener.initializeMetadataRepository(RepositoryListener.java:122)
at org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener.(RepositoryListener.java:60)
at org.eclipse.equinox.internal.p2.reconciler.dropins.DropinsRepositoryListener.(DropinsRepositoryListener.java:54)
at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.watchDropins(Activator.java:473)
at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.start(Activator.java:160)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:783)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:774)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:755)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)
!SUBENTRY 1 org.eclipse.equinox.p2.metadata.repository 4 1005 2011-01-06 20:40:32.625
!MESSAGE Unknown repository type at file:/C:/springsource/sts-2.5.1.RELEASE/configuration/org.eclipse.osgi/bundles/377/data/listener_1925729951/.

!ENTRY org.eclipse.equinox.p2.reconciler.dropins 4 0 2011-01-06 20:40:32.630
!MESSAGE
!STACK 0
org.osgi.framework.BundleException: Exception in org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.start() of bundle org.eclipse.equinox.p2.reconciler.dropins.
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:806)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:755)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)
Caused by: java.lang.IllegalStateException: Could not create metadata repository for: file:/C:/springsource/sts-2.5.1.RELEASE/configuration/org.eclipse.osgi/bundles/377/data/listener_1925729951/
at org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener.initializeMetadataRepository(RepositoryListener.java:125)
at org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener.(RepositoryListener.java:60)
at org.eclipse.equinox.internal.p2.reconciler.dropins.DropinsRepositoryListener.(DropinsRepositoryListener.java:54)
at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.watchDropins(Activator.java:473)
at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.start(Activator.java:160)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:783)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:774)
... 11 more
Root exception:
java.lang.IllegalStateException: Could not create metadata repository for: file:/C:/springsource/sts-2.5.1.RELEASE/configuration/org.eclipse.osgi/bundles/377/data/listener_1925729951/
at org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener.initializeMetadataRepository(RepositoryListener.java:125)
at org.eclipse.equinox.internal.provisional.p2.directorywatcher.RepositoryListener.(RepositoryListener.java:60)
at org.eclipse.equinox.internal.p2.reconciler.dropins.DropinsRepositoryListener.(DropinsRepositoryListener.java:54)
at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.watchDropins(Activator.java:473)
at org.eclipse.equinox.internal.p2.reconciler.dropins.Activator.start(Activator.java:160)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:783)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:774)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:755)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:370)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:374)
at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1067)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:561)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:546)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:459)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:440)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:227)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:337)

!ENTRY org.eclipse.osgi 4 0 2011-01-06 20:40:33.840
!MESSAGE Application error
!STACK 1
org.osgi.service.application.ApplicationException: No application id has been found.
at org.eclipse.equinox.internal.app.EclipseAppContainer.startDefaultApp(EclipseAppContainer.java:262)
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:369)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:179)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:619)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:574)
at org.eclipse.equinox.launcher.Main.run(Main.java:1407)
at org.eclipse.equinox.launcher.Main.main(Main.java:1383)