java.lang.NoClassDefFoundError: javafx/embed/swing/JFXPanel

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You need to add httpcore to your dependencies. Try adding version 4.3 or further.

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Expert tip

A few things cause this exception:
1) Check if you have all jars and if they're in the correct path.
2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

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via Stack Overflow by zfollette
, 1 year ago
javafx/embed/swing/JFXPanel
java.lang.ClassNotFoundException: javafx.embed.swing.JFXPanel
at java.net.URLClassLoader$1.run(URLClassLoader.java:372)
at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:360)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at front_end.GUI.initGUI(GUI.java:47)
at back_end.Run.main(Run.java:28)

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