Problem with eclipse 3.7.2 to develop Android applications

I utilize eclipse 3.7.2  to develop Android applications. Things worked smoothly with it until I opted to install an update for the help tab and a Subversive plug-in to improve code management.

I opened the log file displayed on the error prompt above but I can't figure it out, the log file goes something like this:

!SESSION 2012-08-14 11:23:27.945 

     eclipse.buildId=M20120208-0800
     java.version=1.6.0_30
     java.vendor=Sun Microsystems Inc.
     BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=en_US
     Framework arguments:  -product org.eclipse.epp.package.java.product
     Command-line arguments:  -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.java.product

      !ENTRY org.eclipse.osgi 2 0 2012-08-14 11:23:28.945
      !MESSAGE One or more bundles are not resolved because the following root constraints are not resolved:
      !SUBENTRY 1 org.eclipse.osgi 2 0 2012-08-14 11:23:28.945
      !MESSAGE Bundle  reference:file:plugins/org.eclipse.ui.navigator.resources_3.4.300.v20110928-1505.jar was  not resolved.
      !SUBENTRY 2 org.eclipse.ui.navigator.resources 2 0 2012-08-14 11:23:28.945
      !MESSAGE Missing required bundle org.eclipse.jface_[3.6.0,4.0.0).
      !SUBENTRY 1 org.eclipse.osgi 2 0 2012-08-14 11:23:28.945
      !MESSAGE Bundle reference:file:plugins/org.eclipse.compare.win32_1.0.200.I20110510-0800.jar was not resolved.
      !SUBENTRY 2 org.eclipse.compare.win32 2 0 2012-08-14 11:23:28.945
      !MESSAGE Missing required bundle org.eclipse.jface_[3.5.0,4.0.0).
      !SUBENTRY 1 org.eclipse.osgi 2 0 2012-08-14 11:23:28.945
      !MESSAGE Bundle reference:file:plugins/org.eclipse.ui.workbench_3.7.1.v20120104-1859.jar was not resolved.
      !SUBENTRY 2 org.eclipse.ui.workbench 2 0 2012-08-14 11:23:28.945
      !MESSAGE Missing required bundle org.eclipse.jface_[3.5.0,4.0.0).
      !SUBENTRY 1 org.eclipse.osgi 2 0 2012-08-14 11:23:28.945
      !MESSAGE Bundle reference:file:plugins/org.eclipse.mylyn.commons.ui_3.7.1.v20120425-0100.jar was not resolved.
      !SUBENTRY 2 org.eclipse.mylyn.commons.ui 2 0 2012-08-14 11:23:28.945
      !MESSAGE Missing required bundle org.eclipse.jface_0.0.0.
      !SUBENTRY 1 org.eclipse.osgi 2 0 2012-08-14 11:23:28.945
      !MESSAGE Bundle reference:file:plugins/org.eclipse.mylyn.commons.notifications_0.9.1.v20120412-0100.jar was not resolved.

So does anyone know what I should proceed to deal with this?