When you start the newly installed Elipse Luna, the following error appeared in the file .log. in \workspace\.metadata\ .
Below the error log:
! SESSION 2018-04-24 11: 50: 44,298 ----------------------------------- ------------ eclipse.buildId = 4.4.2.M20150204-1700 java.version = 9.0.4 java.vendor = Oracle Corporation BootLoader constants: OS = win32, ARCH = x86_64, WS = win32, NL = en Framework arguments: -product org.eclipse.epp.package.jee.product Command-line arguments: -os win32 -ws win32 -arch x86_64 -product org.eclipse.epp.package.jee.product ! ENTRY org.eclipse.osgi 4 0 2018-04-24 11: 51: 09.286 ! MESSAGE Application error ! STACK 1 java.lang.NoClassDefFoundError: org / w3c / dom / stylesheets / StyleSheet at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngineManager.getCSSSWTEngine (ThemeEngineManager.java:41) at org.eclipse.e4.ui.css.swt.internal.theme.ThemeEngineManager.getEngineForDisplay (ThemeEngineManager.java:30) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.createThemeEngine (PartRenderingEngine.java:1428) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.initializeStyling (PartRenderingEngine.java:1281) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine $ 9.run (PartRenderingEngine.java:1036) at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run (PartRenderingEngine.java:1032) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI (E4Workbench.java:148) at org.eclipse.ui.internal.Workbench $ 5.run (Workbench.java:636) at org.eclipse.core.databinding.observable.Realm.runWithDefault (Realm.java:332) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench (Workbench.java:579) at org.eclipse.ui.PlatformUI.createAndRunWorkbench (PlatformUI.java:150) at org.eclipse.ui.internal.ide.application.IDEApplication.start (IDEApplication.java:135) at org.eclipse.equinox.internal.app.EclipseAppHandle.run (EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication (EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start (EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:380) at org.eclipse.core.runtime.adaptor.EclipseStarter.run (EclipseStarter.java:235) at java.base / jdk.internal.reflect.NativeMethodAccessorImpl.invoke0 (Native Method) at java.base / jdk.internal.reflect.NativeMethodAccessorImpl.invoke (Unknown Source) at java.base / jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke (Unknown Source) at java.base/java.lang.reflect.Method.invoke (Unknown Source) at org.eclipse.equinox.launcher.Main.invokeFramework (Main.java:648) at org.eclipse.equinox.launcher.Main.basicRun (Main.java:603) at org.eclipse.equinox.launcher.Main.run (Main.java:1465) at org.eclipse.equinox.launcher.Main.main (Main.java:1438) Caused by: java.lang.ClassNotFoundException: org.w3c.dom.stylesheets.StyleSheet can not be found by org.eclipse.e4.ui.css.core_0.10.100.v20140424-2042 at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal (BundleLoader.java:432) 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 (Unknown Source) ... 26 more
What is the error? And what better way to fix it?