Fixed syntax error after importing from e2.

src/ChartDisplay.java

@@ -59,7 +59,7 @@ public class ChartDisplay extends HBox {
 //         HBox histogramBox = new HBox(10,histogramLabel,histogramCheck);
 
         VBox vBox = new VBox(10,metricsChoice,timeChoice,confirmMetric);
-
+        Group root = new Group();
         vBox.setMargin(metricsChoice,new Insets(10,10,10,10));
         vBox.setMargin(timeChoice,new Insets(10,10,10,10));
 //        vBox.setMargin(histogramBox,new Insets(10,10,10,10));