javafx buttons not working on TranslaeTransition - javafx-8

Question

The circle should go back and forth but the start button is not starting it for some reason? When I ran the example file it worked and it looks exactly like mine so not sure why Mine isnt starting. Does anybody know why? Thanks
package projavafx.metronometransition.ui;
import javafx.animation.Animation;
import javafx.animation.Interpolator;
import javafx.animation.TranslateTransition;
import javafx.application.Application;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.layout.HBox;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.stage.Stage;
import javafx.util.Duration;
public class MetronomeTransitionMain extends Application{
Button startButton;
Button pauseButton;
Button resumeButton;
Button stopButton;
Circle circle;
public static void main(String[] args) { Application.launch(args);}
#Override
public void start(Stage stage) {
circle = new Circle(100, 50, 4, Color.BLUE);
TranslateTransition anim = new TranslateTransition(new Duration(1000.0), circle);
anim.setFromX(0);
anim.setToX(200);
anim.setAutoReverse(true);
anim.setCycleCount(Animation.INDEFINITE);
anim.setInterpolator(Interpolator.LINEAR);
startButton = new Button("start");
startButton.setOnAction(e -> anim.playFromStart());
pauseButton = new Button("pause");
startButton.setOnAction(e -> anim.pause());
resumeButton = new Button("resume");
resumeButton.setOnAction(e -> anim.play());
stopButton = new Button("stop");
stopButton.setOnAction(e -> anim.stop());
HBox commands = new HBox(10, startButton,
pauseButton,
resumeButton,
stopButton);
commands.setLayoutX(60);
commands.setLayoutY(420);
Group group = new Group(circle, commands);
Scene scene = new Scene(group, 400, 500);
startButton.disableProperty().bind(anim.statusProperty()
.isNotEqualTo(Animation.Status.STOPPED));
pauseButton.disableProperty().bind(anim.statusProperty()
.isNotEqualTo(Animation.Status.RUNNING));
resumeButton.disableProperty().bind(anim.statusProperty()
.isNotEqualTo(Animation.Status.PAUSED));
stopButton.disableProperty().bind(anim.statusProperty()
.isEqualTo(Animation.Status.STOPPED));
stage.setScene(scene);
stage.setTitle("Metronome using TranslateTransition");
stage.show();
}
}