javafx does not exist code example
Example 1: package javafx.fxml does not exist
sudo cp /usr/share/java/openjfx/lib/* /usr/lib/jvm/java-1.8.0-openjdk-amd64/lib
Example 2: package javafx.fxml does not exist
sudo apt-get install openjdk-8-jre
sudo cp /usr/share/java/openjfx/lib/* /usr/lib/jvm/java-1.8.0-openjdk-amd64/lib
sudo apt-get install openjdk-8-jre