java - I can not open Eclipse -

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i'm trying open eclipse workspace use, got error. here part log (any appreciated):

      !session 2014-01-22 10:01:39.699 ----------------------------------------------- eclipse.buildid=4.3.0.m20130911-1000 java.version=1.7.0_45 java.vendor=oracle corporation bootloader constants: os=win32, arch=x86_64, ws=win32, nl=en_us framework arguments:  -product org.eclipse.epp.package.standard.product command-line arguments:  -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.standard.product  continuation of log file d:\phd_svn\code\.metadata\.bak_0.log created time: 2014-01-22 15:17:42.504  !entry org.eclipse.ui 4 0 2014-01-22 15:17:42.507 !message unhandled event loop exception !stack 0 java.lang.reflect.undeclaredthrowableexception     @ com.sun.proxy.$proxy15.mousemove(unknown source)     @ org.eclipse.swt.widgets.typedlistener.handleevent(typedlistener.java:212)     @ org.eclipse.swt.widgets.eventtable.sendevent(eventtable.java:84)     @ org.eclipse.swt.widgets.widget.sendevent(widget.java:1057)     @ org.eclipse.swt.widgets.display.rundeferredevents(display.java:4170)     @ org.eclipse.swt.widgets.display.readanddispatch(display.java:3759)     @ org.eclipse.e4.ui.internal.workbench.swt.partrenderingengine$9.run(partrenderingengine.java:1113)     @ org.eclipse.core.databinding.observable.realm.runwithdefault(realm.java:332)     @ org.eclipse.e4.ui.internal.workbench.swt.partrenderingengine.run(partrenderingengine.java:997)     @ org.eclipse.e4.ui.internal.workbench.e4workbench.createandrunui(e4workbench.java:138)     @ org.eclipse.ui.internal.workbench$5.run(workbench.java:610)     @ org.eclipse.core.databinding.observable.realm.runwithdefault(realm.java:332)     @ org.eclipse.ui.internal.workbench.createandrunworkbench(workbench.java:567)     @ org.eclipse.ui.platformui.createandrunworkbench(platformui.java:150)     @ org.eclipse.ui.internal.ide.application.ideapplication.start(ideapplication.java:124)     @ org.eclipse.equinox.internal.app.eclipseapphandle.run(eclipseapphandle.java:196)     @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.runapplication(eclipseapplauncher.java:110)     @ org.eclipse.core.runtime.internal.adaptor.eclipseapplauncher.start(eclipseapplauncher.java:79)     @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(eclipsestarter.java:354)     @ org.eclipse.core.runtime.adaptor.eclipsestarter.run(eclipsestarter.java:181)     @ sun.reflect.nativemethodaccessorimpl.invoke0(native method)     @ sun.reflect.nativemethodaccessorimpl.invoke(nativemethodaccessorimpl.java:57)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:606)     @ org.eclipse.equinox.launcher.main.invokeframework(main.java:636)     @ org.eclipse.equinox.launcher.main.basicrun(main.java:591)     @ org.eclipse.equinox.launcher.main.run(main.java:1450) caused by: java.lang.reflect.invocationtargetexception     @ sun.reflect.generatedmethodaccessor63.invoke(unknown source)     @ sun.reflect.delegatingmethodaccessorimpl.invoke(delegatingmethodaccessorimpl.java:43)     @ java.lang.reflect.method.invoke(method.java:606)     @ org.eclipse.wb.internal.draw2d.eventmanager$8.invoke(eventmanager.java:325)     ... 27 more caused by: java.lang.nullpointerexception     @ org.eclipse.wb.draw2d.figure.getfigurecanvas(figure.java:372)     @ org.eclipse.wb.draw2d.figure.getfigurecanvas(figure.java:372)     @ org.eclipse.wb.draw2d.figureutils.translatefiguretocanvas(figureutils.java:100)     @ org.eclipse.wb.core.controls.palette.palettecomposite.gettargetfigure(palettecomposite.java:1167)     @ org.eclipse.wb.core.controls.palette.palettecomposite.access$6(palettecomposite.java:1164)     @ org.eclipse.wb.core.controls.palette.palettecomposite$entryfigure.move_showfeedback(palettecomposite.java:831)     @ org.eclipse.wb.core.controls.palette.palettecomposite$entryfigure.access$12(palettecomposite.java:827)     @ org.eclipse.wb.core.controls.palette.palettecomposite$entryfigure$2.mousemove(palettecomposite.java:793)     @ org.eclipse.wb.internal.draw2d.eventmanager$4.invokelistener(eventmanager.java:267)     @ org.eclipse.wb.internal.draw2d.eventmanager.sendevent(eventmanager.java:205)     @ org.eclipse.wb.internal.draw2d.eventmanager.handlemouseevent(eventmanager.java:191)     @ org.eclipse.wb.internal.draw2d.eventmanager.mousemove(eventmanager.java:184)     ... 31 more  !entry org.eclipse.ui 4 0 2014-01-22 15:17:42.511 !message unhandled event loop exception !stack 0

for more information, eclipse has 1 plugin gui plug-in create gui simple drag , drop mechanism.. furthermore, code inside workspace osgi bundles

i don't know why need install plugin drag , drop mechanism in eclipse, quote crowd:

have tried turning off , on again? (delete->re-install)


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