Linux Myeclipse 2015在以清洁模式运行后ro启动失败？

我将myeclipse 2015与Ubuntu14.10一起使用，速度非常慢，因此我在clean模式下执行它：

./myeclipse -clean

从那时起，它就无法启动

!SESSION 2015-03-13 16:56:19.404 -----------------------------------------------
eclipse.buildId=unknown
java.version=1.7.0_45
java.vendor=Oracle Corporation
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US
Command-line arguments:  -os linux -ws gtk -arch x86_64 -clean

!ENTRY com.genuitec.eclipse.themes.dark.core 4 0 2015-03-13 16:57:00.635
!MESSAGE FrameworkEvent ERROR
!STACK 0
java.lang.NoClassDefFoundError: org/eclipse/core/internal/preferences/PreferencesOSGiUtils
        at com.genuitec.eclipse.themes.dark.core.internal.DarkExtensionsManagerImpl.initialize(DarkExtensionsManagerImpl.java:88)
        at com.genuitec.eclipse.themes.dark.core.internal.DarkExtensionsManagerImpl.weave(DarkExtensionsManagerImpl.java:128)
        at com.genuitec.eclipse.themes.dark.core.internal.DarkWeaver.weave(DarkWeaver.java:16)
        at org.eclipse.osgi.internal.weaving.WovenClassImpl.call(WovenClassImpl.java:160)
        at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHookPrivileged(ServiceRegistry.java:1280)
        at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHooksPrivileged(ServiceRegistry.java:1263)
        at org.eclipse.osgi.internal.weaving.WovenClassImpl.callHooks(WovenClassImpl.java:242)
        at org.eclipse.osgi.internal.weaving.WeavingHookConfigurator.processClass(WeavingHookConfigurator.java:56)
        at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:616)
        at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:588)
        at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:540)
        at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:527)
        at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:324)
        at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:320)
        at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:391)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:345)
        at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:337)
        at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:160)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
        at com.genuitec.eclipse.themes.dark.core.internal.DarkExtensionsManagerImpl.initialize(DarkExtensionsManagerImpl.java:88)
        at com.genuitec.eclipse.themes.dark.core.internal.DarkExtensionsManagerImpl.weave(DarkExtensionsManagerImpl.java:128)
        at com.genuitec.eclipse.themes.dark.core.internal.DarkWeaver.weave(DarkWeaver.java:16)
        at org.eclipse.osgi.internal.weaving.WovenClassImpl.call(WovenClassImpl.java:160)
        at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.notifyHookPrivileged(ServiceRegistry.java:1280)

---

为什么会发生这种情况，我如何修复它？

看起来您的安装可能已损坏。如果您还没有整理好，我建议您重新安装MyEclipse 2015