java lang ClassNotFoundException org eclipse core runtime adaptor EclipseStarter

Question

When i am starting my eclipse i am getting this exception How could i resolve this    SESSION Thu Aug 05 12 52 23 IST 2010 ------------------------------------------  ENTRY org eclipse equinox launcher 4 0 2010-08-05 12 52 23 805  MESSAGE Exception launching the Eclipse Platform   STACK java lang ClassNotFoundException  org eclipse core runtime adaptor EclipseStarter     at java net URLClassLoader 1 run URLClassLoader java 200      at java security AccessController doPrivileged Native Method      at java net URLClassLoader findClass URLClassLoader java 188      at java lang ClassLoader loadClass ClassLoader java 307      at java lang ClassLoader loadClass ClassLoader java 252      at org eclipse equinox launcher Main invokeFramework Main java 556      at org eclipse equinox launcher Main basicRun Main java 514      at org eclipse equinox launcher Main run Main java 1311      at org eclipse equinox launcher Main main Main java 1287    I cleared my workspace also but still i am getting same problem   I add one plugin name called tomcatPluginV321 zip I extracted this in plugin folder   then i am facing this problem

User · Answer

You might be launching your application from a Product file which is not linked to the plugin file  Reset your workspace and launch using the MANIFEST MF   Overview   Testing   Launch

User · Answer

I just went through this   If you want to manually move your Eclipse installation you need to find and edit relative references in the following files   Relative to Eclipse install dir    configuration org eclipse equinox source source info configuration org eclipse equinox simpleconfigurator bundles info configuration config ini eclipse ini   For me in all these files there was a     reference to a  p2 folder in my home directory   Found them all using a simple grep   grep                  -R   Then just hit it with sed or manually go change it   In my case I moved it up one folder so easy fix   grep -rl                  -R   xargs sed -i  s                               g    Now Eclipse runs fine again

User · Answer

I have the same error after attempting to update Android Development Toolkit  ADT  plugin for Eclipse 3 5   I haven t figured out what caused this but I re-installed  unziped Eclipse  to fix it

User · Answer

This can a time consuming problem  For those who want to get on with their work because they do not want to waste much time  I would like to suggest that you download the zip file and unpack the zip file and use it  The zip file is available for all major OS   https   www eclipse org downloads packages   Here instead of hitting the Download button  which will download the Eclipse installer  scroll to the middle area where a list of the various Eclipse IDEs with their respective features are shown  Select the Eclipse IDE of your like and click on the link on the right-hand-side to download the zip or corresponding file for your OS version   If you still want to use your other Eclipse installations because  for example  you have plugins installed  then download the Eclipse installer and on the right-hand top corner press the icon with 3 minus  After that press Update  then after restart  install the version of Eclipse IDE  which you want  the one that you want to reactivate  in a different folder  The installation will take some time  After the installation is finished you should be able to start your old Eclipse IDE

User · Answer

Just copying the content of the zip-file to its prefered location from the zip-file will give you this error when you attempt to run the only executable that is visible in the archive  It is named similarly but it is not the real thing   You should let the archive extract itself to make the installation complete correctly  Doing so gives you an executable named eclipse exe with which you will not get this error

User · Answer

check jar files in your project which are mentioned in config ini if not proper then install manually and then follow the following steps    Select your product configuration file  right-click on it and select Run As  Run Configurations Select  Validate plug-ins prior to launching   This will check if you have all required plug-ins in your run configuration  If this check reports that some plug-ins are missing  try clicking the  Add Required-Plug-Ins  button  Also make sure to define all dependencies in your product  And your application start running

User · Answer

my case seems to be invalid JRE version   1 7  required while I launched with 1 6  plus  I filtered some plugin jars which might be required  so changed to select all

User · Answer

I had the same issue   just removed all my worskspace   C  Users  lt name gt    lt eclipse similar name gt

User · Answer

In your config ini file of eclipse eclipse configuration config ini  check this three things   osgi framework file  plugins  org eclipse osgi 3 4 2 R34x v20080826-1230 jar osgi bundles reference  file  org eclipse equinox simpleconfigurator 1 0 0 v20080604 jar 1  start org eclipse equinox simpleconfigurator configUrl file  org eclipse equinox simpleconfigurator  bundles info   And check whether these jars are in place or not  the jar files depend upon your version of eclipse

[eclipse] java.lang.ClassNotFoundException: org.eclipse.core.runtime.adaptor.EclipseStarter

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