Getting 15 errors when using JavaFX in Visual Studio Code, but I get none when I use Eclipse

Question

Beginner here with JavaFX. I'm working on a Java project with JavaFX and it works completely fine on Eclipse. When I use Visual Studio Code on the other hand, I get errors that look like this:

FridgeGUI.java:1: error: package javafx.application does not exist
import javafx.application.Application;

For me, I prefer Visual Studio Code for the ease of use, but I cannot find what is wrong with it. I believe I added JavaFX correctly using Referenced Libraries. Does anyone know why?

Code:

import javafx.application.Application;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.StackPane;
import javafx.stage.Stage;

public class FridgeGUI extends Application {
    Button button;

    public static void main(String[] args) {
        launch(args);
    }

    @Override
    public void start(Stage primaryStage) throws Exception {
        primaryStage.setTitle("Fill Up the Fridge!");
         
          button = new Button("Enter");
         
          StackPane layout = new StackPane();
          layout.getChildren().add(button);
         
          Scene scene = new Scene(layout, 700, 700);
          primaryStage.setScene(scene);
          primaryStage.show();
        
    }

}