Cannot save VisNow's network
On save .vna an error occurs: java.lang.NoClassDefFoundError: org/xmlpull/v1/XmlPullParserException at com.thoughtworks.xstream.XStream.(XStream.java:369) at pl.edu.icm.visnow.engine.core.Parameters.writeXML(Parameters.java:232) at pl.edu.icm.visnow.application.io.VNWriter.writeModule(VNWriter.java:162) at pl.edu.icm.visnow.application.io.VNWriter.tryWriteApplication(VNWriter.java:121) at pl.edu.icm.visnow.application.io.VNWriter.writeApplication(VNWriter.java:80) at pl.edu.icm.visnow.application.application.Application.betaSaveAs(Application.java:348) at pl.edu.icm.visnow.system.framework.MainMenu.betaSave(MainMenu.java:319) at pl.edu.icm.visnow.system.framework.MainWindow.jMenuItem2ActionPerformed(MainWindow.java:828) at pl.edu.icm.visnow.system.framework.MainWindow.access$1000(MainWindow.java:67) at pl.edu.icm.visnow.system.framework.MainWindow11.actionPerformed(MainWindow.java:416) at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:2022) at javax.swing.AbstractButtonHandler.actionPerformed(AbstractButton.java:2348) at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:402) at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:259) at javax.swing.AbstractButton.doClick(AbstractButton.java:376) at javax.swing.AbstractButton.doClick(AbstractButton.java:356) at javax.swing.plaf.basic.BasicMenuItemUI$Actions.actionPerformed(BasicMenuItemUI.java:802) at javax.swing.SwingUtilities.notifyAction(SwingUtilities.java:1663) at javax.swing.JComponent.processKeyBinding(JComponent.java:2882) at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:699) at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:706) at javax.swing.JMenuBar.processBindingForKeyStrokeRecursive(JMenuBar.java:706) at javax.swing.JMenuBar.processKeyBinding(JMenuBar.java:677) at javax.swing.KeyboardManager.fireBinding(KeyboardManager.java:307) at javax.swing.KeyboardManager.fireKeyboardAction(KeyboardManager.java:293) at javax.swing.JComponent.processKeyBindingsForAllComponents(JComponent.java:2974) at javax.swing.JComponent.processKeyBindings(JComponent.java:2966) at javax.swing.JComponent.processKeyEvent(JComponent.java:2845) at java.awt.Component.processEvent(Component.java:6310) at java.awt.Container.processEvent(Container.java:2236) at java.awt.Component.dispatchEventImpl(Component.java:4889) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.KeyboardFocusManager.redispatchEvent(KeyboardFocusManager.java:1954) at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(DefaultKeyboardFocusManager.java:806) at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(DefaultKeyboardFocusManager.java:1074) at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(DefaultKeyboardFocusManager.java:945) at java.awt.DefaultKeyboardFocusManager.dispatchEvent(DefaultKeyboardFocusManager.java:771) at java.awt.Component.dispatchEventImpl(Component.java:4760) at java.awt.Container.dispatchEventImpl(Container.java:2294) at java.awt.Window.dispatchEventImpl(Window.java:2746) at java.awt.Component.dispatchEvent(Component.java:4711) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:758) at java.awt.EventQueue.access$500(EventQueue.java:97) at java.awt.EventQueue$3.run(EventQueue.java:709) at java.awt.EventQueue3.run(EventQueue.java:703) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomainJavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:86) at java.awt.EventQueue$4.run(EventQueue.java:731) at java.awt.EventQueue4.run(EventQueue.java:729) at java.security.AccessController.doPrivileged(Native Method) at java.security.ProtectionDomainJavaSecurityAccessImpl.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:728) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:201) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:116) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:105) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:101) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:93) at java.awt.EventDispatchThread.run(EventDispatchThread.java:82) Caused by: java.lang.ClassNotFoundException: org.xmlpull.v1.XmlPullParserException at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 60 more