java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) Caused: java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel starting from ModuleCL@7a6a25ab[org.netbeans.jfxfluidon] with possible defining loaders [ModuleCL@45bbe38d[org.netbeans.libs.javafx]] and declared parents [ModuleCL@4caa4113[org.openide.windows], ModuleCL@1506291d[org.openide.loaders], ModuleCL@77346e80[org.netbeans.modules.settings], ModuleCL@3563b708[org.netbeans.core.multiview], ModuleCL@6d8dbc42[org.openide.nodes], ModuleCL@2174f491[org.netbeans.spi.navigator], org.netbeans.MainImpl$BootClassLoader@c4179ba, ModuleCL@783b3f7b[org.openide.awt], ModuleCL@77ce1626[org.openide.dialogs]] at org.netbeans.ProxyClassLoader.loadClass(ProxyClassLoader.java:224) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) Caused: java.lang.NoClassDefFoundError: javafx/embed/swing/JFXPanel at org.netbeans.jfxfluidon.action.FXMLOpenAction$1.run(FXMLOpenAction.java:98) at java.awt.event.InvocationEvent.dispatch(InvocationEvent.java:312) at java.awt.EventQueue.dispatchEventImpl(EventQueue.java:733) at java.awt.EventQueue.access$200(EventQueue.java:103) at java.awt.EventQueue$3.run(EventQueue.java:694) at java.awt.EventQueue$3.run(EventQueue.java:692) at java.security.AccessController.doPrivileged(AccessController.java:0) at java.security.ProtectionDomain$1.doIntersectionPrivilege(ProtectionDomain.java:76) at java.awt.EventQueue.dispatchEvent(EventQueue.java:703) at org.netbeans.core.TimableEventQueue.dispatchEvent(TimableEventQueue.java:159) at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:242) at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:161) at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:150) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:146) at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:138) at java.awt.EventDispatchThread.run(EventDispatchThread.java:91)