JavaFX Exception in thread “main” java.lang.NoClassDefFoundError: javafx/application/Application

Question

I\'m getting this error

Exception in thread \"main\" java.lang.NoClassDefFoundError: javafx/application/Ap
plication
        at java.lang.ClassLoader.defineC         


        

Answer 1

I had the same problem and below steps helped me to solve it,

Adding the vm arguments while running the application,

--module-path  /home/user/Java-libraries/openjfx-11.0.2_linux-x64_bin-sdk/javafx-sdk-11.0.2/lib/ --add-modules javafx.controls,javafx.fxml

Note:

• The --module-path will contain the jars of Java fx
• I used open-jdk 13

Configure this in your eclipse (If you are using so) or you can just compile and run like,

Compile

javac --module-path /path/to/java-fx-libs/ --add-modules javafx.controls,javafx.fxml *.java

Run

java --module-path /path/to/java-fx-libs/ --add-modules javafx.controls,javafx.fxml MyMainClass