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I m new to android development. After I click to launch eclipse it shows an error:

"An error has occurred. See the log file D:\JAVA\workspace.metadata.log."

When I checked log file it says (I m putting only last log)

"!ENTRY org.eclipse.osgi 4 0 2012-07-16 17:44:13.991 !MESSAGE Application error !STACK 1 java.lang.NullPointerException at org.eclipse.e4.ui.internal.workbench.E4Workbench.processHierarchy(E4Workbench.java:172) at org.eclipse.e4.ui.internal.workbench.E4Workbench.init(E4Workbench.java:118) at org.eclipse.e4.ui.internal.workbench.E4Workbench.(E4Workbench.java:69) at org.eclipse.e4.ui.internal.workbench.swt.E4Application.createE4Workbench(E4Application.java:302) at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:554) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:540) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149) at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) 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:353) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180) 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:629) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584) at org.eclipse.equinox.launcher.Main.run(Main.java:1438) "

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Same here, eclipse would no longer start after the 4.2 SR1 upgrade. No solution yet, though. –  Peter V Oct 3 '12 at 19:06
    
I have the same problem on Ubuntu 12.04. Any hints on how to solve this are welcome. –  Luís de Sousa Mar 21 '14 at 13:03

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