Eclipse start problem after plugin installation

I use Eclipse 3.4.2 and just installed Android SDK plugin for eclipse. But After installation when I start the eclipse, I get error message

Here is what the log says

!SESSION 2011-03-07 11:13:53.163 -----------------------------------------------
eclipse.buildId=M20090211-1700
java.version=1.6.0_23
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.osgi 4 0 2011-03-07 11:13:53.632
!MESSAGE Application error
!STACK 1
java.lang.IllegalStateException: Unable to acquire application service. Ensure that the org.eclipse.core.runtime bundle is resolved and started (see config.ini).
    at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:74)
    at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:386)
    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 2011-03-07 11:13:53.647
!MESSAGE One or more bundles are not resolved because the 开发者_开发问答following root constraints are not resolved:
!SUBENTRY 1 org.eclipse.osgi 2 0 2011-03-07 11:13:53.647
!MESSAGE Bundle reference:file:plugins\com.android.ide.eclipse.traceview_10.0.0.v201102162101-104271.jar was not resolved.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.647
!MESSAGE Missing required bundle org.eclipse.core.runtime_0.0.0.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.647
!MESSAGE Missing required bundle org.eclipse.ui.ide_0.0.0.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.648
!MESSAGE Missing required bundle org.eclipse.ui_0.0.0.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.648
!MESSAGE Missing required bundle org.eclipse.jdt.core_0.0.0.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.648
!MESSAGE Missing required bundle org.eclipse.core.resources_0.0.0.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.648
!MESSAGE Missing required bundle org.eclipse.core.filesystem_0.0.0.
!SUBENTRY 2 com.android.ide.eclipse.traceview 2 0 2011-03-07 11:13:53.648
!MESSAGE Missing required bundle org.eclipse.jdt.ui_0.0.0.
!SUBENTRY 1 org.eclipse.osgi 2 0 2011-03-07 11:13:53.648
!MESSAGE Bundle reference:file:plugins\com.android.ide.eclipse.hierarchyviewer_10.0.0.v201102162101-104271.jar was not resolved.
!SUBENTRY 2 com.android.ide.eclipse.hierarchyviewer 2 0 2011-03-07 11:13:53.648

Has anyone faced the same problem?

I have resolved the issue by reinstalling eclipse , not what I wanted, but I will go with this one at this moment.

A number of people have reported similar problems. There are several suggestions in that thread, but no definitive solutions. Only one of the suggestions worked for me - it's a way to revert eclipse to a previous state from the command line. It comes from this blog post.

In a terminal:

1. Go to the folder containing your eclipse install
2. ls -lt p2/org.eclipse.equinox.p2.engine/profileRegistry/<som_profile_name>.profile/
3. In my case <som_profile_name> was epp.package.java.profile, in Paul's blog SDKProfile.
4. You should see files like 1372434812558.profile.gz.
5. Choose a recent one with a date you feel sure is ok

6. Put together a command like:

   eclipse -noSplash -application org.eclipse.equinox.p2.director -repository file:$(pwd)/p2/org.eclipse.equinox.p2.engine/profileRegistry/<som_profile_name>.profile -profile <som_profile_name> -revert 1372434812558

7. If that doesn't work, try adding -destination . (I did it successfully with -destination, but I think it should work without)