Eclipse an error has occurred. See the log file C:/Users/User/workspace/.metadata/.log

[EyeOfS4uron]

Hallo, seit dem heutigen Tag funktioniert mein Eclipse nicht mehr. Folgende Fehlermeldung kommt, wenn ich versuche es zu starten:
Eclipse an error has occurred. See the log file C:/Users/User/workspace/.metadata/.log

Wenn ich mir dann den Log der verwiesenen Log-Datei anschaue, steht dort folgendes:

Gibt es hier evtl. eine Person, die ein ähnliches Problem hat/ eine Lösung kennt?

!ENTRY org.eclipse.osgi 4 0 2018-10-15 19:13:14.792
!MESSAGE Application error
!STACK 1
java.lang.NoClassDefFoundError: org/eclipse/core/resources/IContainer
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:156)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:199)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:137)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:107)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:391)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:246)
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:659)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:595)
at org.eclipse.equinox.launcher.Main.run(Main.java:1501)
Caused by: java.lang.ClassNotFoundException: An error occurred while automatically activating bundle org.eclipse.core.resources (98).
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:126)
at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:557)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:331)
at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:395)
at org.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:39)
at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:469)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:422)
at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:414)
at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:153)
at java.lang.ClassLoader.loadClass(Unknown Source)
... 13 more
Caused by: org.osgi.framework.BundleException: Exception in org.eclipse.core.resources.ResourcesPlugin.start() of bundle org.eclipse.core.resources.
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:803)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:732)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1005)
at org.eclipse.osgi.internal.framework.EquinoxBundle$EquinoxModule.startWorker(EquinoxBundle.java:357)
at org.eclipse.osgi.container.Module.doStart(Module.java:584)
at org.eclipse.osgi.container.Module.start(Module.java:452)
at org.eclipse.osgi.framework.util.SecureAction.start(SecureAction.java:471)
at org.eclipse.osgi.internal.hooks.EclipseLazyStarter.postFindLocalClass(EclipseLazyStarter.java:117)
... 22 more
Caused by: org.eclipse.core.internal.resources.ResourceException: Incompatible file format. Workspace was saved with an incompatible version: 0.
at org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:62)
at org.eclipse.core.internal.resources.WorkspaceTreeReader.getReader(WorkspaceTreeReader.java:70)
at org.eclipse.core.internal.resources.SaveManager.restoreTree(SaveManager.java:1042)
at org.eclipse.core.internal.resources.SaveManager.restore(SaveManager.java:705)
at org.eclipse.core.internal.resources.SaveManager.startup(SaveManager.java:1561)
at org.eclipse.core.internal.resources.Workspace.startup(Workspace.java:2451)
at org.eclipse.core.internal.resources.Workspace.open(Workspace.java:2208)
at org.eclipse.core.resources.ResourcesPlugin.start(ResourcesPlugin.java:489)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:782)
at org.eclipse.osgi.internal.framework.BundleContextImpl$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:775)
... 29 more
Caused by: java.lang.Exception: Incompatible file format. Workspace was saved with an incompatible version: 0.
at org.eclipse.core.internal.resources.ResourceException.provideStackTrace(ResourceException.java:42)
at org.eclipse.core.internal.resources.ResourceException.<init>(ResourceException.java:38)
... 41 more

 

[znep]

Hallo,

Workspace schon neu aufgebaut? Ich vermute das dies hier der eigentliche Fehler ist:

Caused by: org.eclipse.core.internal.resources.ResourceException: Incompatible file format. Workspace was saved with an incompatible version: 0.

 

[EyeOfS4uron]

Danke für die Antwort! Ich konnte den Fehler beheben.