Java - Error con Eclipse

Hola, normalmente uso Eclipse para hacer mis trabajos de configuracion y el otro dia me dio un error muy raro que no se como solucionar

Este es el error

Hola Jose Luis, has mirado el log como te dice?

Buenas no encuentro el directorio en mi pc

Como que no lo encuentras¿? has probado a buscarlo en el disco duro? no se que sistema operativo estas utilizando, pero si utilizas Linux, puedes utilizar el comando locate.

Uso Windows pero no entiendo mucho estoy algo perdido

En Winows tienes una opción para buscar archivos en tu disco duro.

Si pero no me sé que combinación es y tampoco donde encontrar es decir que poner en el buscador

El log ya está en pantalla:
Falla al intentar cargar el plugin: org.eclipse.ui.workbench

Puedes descargar por separado este plugin (es un archivo JAR) y sobreecribir el actual por si se hubiera dañado. Pero a riesgo de errar al buscar la versión adecuada, yo optaría directamente por reinstalar Eclipse por completo.

Los programas y códigos que ya tengas escritos, están a salvo en su correspondiente workspace, así que eso no debería ser un problema.

El log es este

!SESSION 2020-04-17 11:40:23.098 -----------------------------------------------
eclipse.buildId=4.9.0.I20180906-0745
java.version=1.8.0_241
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86, WS=win32, NL=es_ES
Framework arguments: -product org.eclipse.epp.package.java.product
Command-line arguments: -os win32 -ws win32 -arch x86 -product org.eclipse.epp.package.java.product

!ENTRY org.eclipse.osgi 4 0 2020-04-17 11:40:59.889
!MESSAGE An error occurred while automatically activating bundle org.eclipse.core.resources (98).
!STACK 0
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)
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)
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: 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
Root exception:
org.eclipse.core.internal.resources.ResourceException(null)[567]: 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)
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$3.run(BundleContextImpl.java:1)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.internal.framework.BundleContextImpl.startActivator(BundleContextImpl.java:775)
at org.eclipse.osgi.internal.framework.BundleContextImpl.start(BundleContextImpl.java:732)
at org.eclipse.osgi.internal.framework.EquinoxBundle.startWorker0(EquinoxBundle.java:1005)
at org.eclipse.osgi.internal.framework.EquinoxBundle$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)
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)
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)

!ENTRY org.eclipse.osgi 4 0 2020-04-17 11:40:59.965
!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