Hallo, liebe Community,

ich habe mir heute Fakturama installiert und bin sehr angetan.

Allerdings erscheint beim Versuch, Dokumente zu drucken, ein Popup mit der Meldung "Internal Error". Ich habe schon nach Stichwörtern aus dem Logfile gegoogelt, aber ich konnte das Problem respl. Lösung nicht finden.

Das hier ist der Auszug vom Logfile.

!SESSION 2018-01-11 22:13:48.461 -----------------------------------------------
eclipse.buildId=unknown
java.fullversion=JRE 1.8.0 IBM J9 2.8 Linux amd64-64 Compressed References 20170209_336038 (JIT enabled, AOT enabled)
J9VM - R28_20170209_0201_B336038
JIT - tr.r14.java.green_20170125_131456
GC - R28_20170209_0201_B336038_CMPRSS
J9CL - 20170209_336038
BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=de_DE
Command-line arguments: -os linux -ws gtk -arch x86_64

!ENTRY org.eclipse.e4.ui.workbench 1 0 2018-01-11 22:13:59.303
!MESSAGE create Document list part

!ENTRY org.eclipse.e4.ui.workbench 1 0 2018-01-11 22:14:05.062
!MESSAGE create DocumentItem list part

!ENTRY org.eclipse.e4.ui.workbench 4 0 2018-01-11 22:14:07.529
!MESSAGE Internal Error
!STACK 0
java.lang.NoClassDefFoundError: com.sun.org.apache.xerces.internal.dom.ElementNSImpl
	at java.lang.ClassLoader.defineClassImpl(Native Method)
	at java.lang.ClassLoader.defineClass(ClassLoader.java:346)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.defineClass(ModuleClassLoader.java:276)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.defineClass(ClasspathManager.java:655)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findClassImpl(ClasspathManager.java:578)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClassImpl(ClasspathManager.java:538)
	at org.eclipse.osgi.internal.loader.classpath.ClasspathManager.findLocalClass(ClasspathManager.java:525)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.findLocalClass(ModuleClassLoader.java:328)
	at org.eclipse.osgi.internal.loader.BundleLoader.findLocalClass(BundleLoader.java:368)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:446)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:809)
	at com.sebulli.fakturama.office.OfficeDocument.createDocument(OfficeDocument.java:204)
	at com.sebulli.fakturama.handlers.CreateOODocumentHandler.openOODocument(CreateOODocumentHandler.java:301)
	at com.sebulli.fakturama.handlers.CreateOODocumentHandler.run(CreateOODocumentHandler.java:238)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
	at java.lang.reflect.Method.invoke(Method.java:508)
	at org.eclipse.e4.core.internal.di.MethodRequestor.execute(MethodRequestor.java:55)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invokeUsingClass(InjectorImpl.java:305)
	at org.eclipse.e4.core.internal.di.InjectorImpl.invoke(InjectorImpl.java:239)
	at org.eclipse.e4.core.contexts.ContextInjectionFactory.invoke(ContextInjectionFactory.java:132)
	at org.eclipse.e4.core.commands.internal.HandlerServiceHandler.execute(HandlerServiceHandler.java:152)
	at org.eclipse.core.commands.Command.executeWithChecks(Command.java:494)
	at org.eclipse.core.commands.ParameterizedCommand.executeWithChecks(ParameterizedCommand.java:487)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:210)
	at org.eclipse.e4.core.commands.internal.HandlerServiceImpl.executeHandler(HandlerServiceImpl.java:196)
	at com.sebulli.fakturama.parts.CoolbarViewPart.lambda$0(CoolbarViewPart.java:342)
	at com.sebulli.fakturama.parts.CoolbarViewPart$$Lambda$138.00000000F43D6400.accept(Unknown Source)
	at org.eclipse.swt.events.SelectionListener$1.widgetSelected(SelectionListener.java:81)
	at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:249)
	at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86)
	at org.eclipse.swt.widgets.Display.sendEvent(Display.java:5348)
	at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1348)
	at org.eclipse.swt.widgets.Display.runDeferredEvents(Display.java:4602)
	at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:4183)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150)
	at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336)
	at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039)
	at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153)
	at org.eclipse.e4.ui.internal.workbench.swt.E4Application.start(E4Application.java:162)
	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:388)
	at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:95)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:55)
	at java.lang.reflect.Method.invoke(Method.java:508)
	at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653)
	at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590)
	at org.eclipse.equinox.launcher.Main.run(Main.java:1499)
	at org.eclipse.equinox.launcher.Main.main(Main.java:1472)
Caused by: java.lang.ClassNotFoundException: com.sun.org.apache.xerces.internal.dom.ElementNSImpl cannot be found by com.sebulli.fakturama.common_2.0.0
	at org.eclipse.osgi.internal.loader.BundleLoader.findClassInternal(BundleLoader.java:484)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:395)
	at org.eclipse.osgi.internal.loader.BundleLoader.findClass(BundleLoader.java:387)
	at org.eclipse.osgi.internal.loader.ModuleClassLoader.loadClass(ModuleClassLoader.java:150)
	at java.lang.ClassLoader.loadClass(ClassLoader.java:809)
	... 57 more

Mein OS ist Ubuntu 16.04.

Woran könnte das liegen?

Vielen Dank im voraus für Antworten.

Paolo.