Unable to launch the tasks run,android

[guruprasaad123]

`

   package com.gluonapplication;
 import java.util.Optional;

 import com.gluonapplication.controls.HomeController;
 import com.gluonhq.charm.glisten.application.ViewStackPolicy;
 import com.gluonhq.charm.glisten.visual.Swatch;
 import com.zeiss.quarkfx.QuarkFXApplication;
 import com.zeiss.quarkfx.platformindependant.IntentP;
 import com.zeiss.quarkfx.viewhandler.ViewHandler;

 import javafx.scene.Scene;

 public abstract class Main extends QuarkFXApplication{
 //IMPORTANT change the init method to this: (you can use the viewhandler to initialize your views)

@Override
public void initApp(ViewHandler viewmanager)
{
   
viewmanager.registerView(new HomeController());
viewmanager.setHomeView(HomeController.ID);

}

//IMPORTANT change the postInit method to this:
@Override
public void postInitApp(Scene scene){
    //post init stuff here
	 Swatch.BLUE.assignTo(scene);
}

//IMPORTANT change your stop method (if you have one) to this
@Override
public void stopApp(){
    //javafx's stop method (called when application closes)
}

//called when this app was launched via intent
@Override
public void handleIntent(IntentP intent){
    //handle this intent please (intent is not null)
}



@Override
protected void startApp() {
	// TODO Auto-generated method stub
	
}

}
`
here's my code on launching the tasks run , android am getting this exception
Exception in Application constructor
java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at com.sun.javafx.application.LauncherImpl.launchApplicationWithArgs(LauncherImpl.java:389)
at com.sun.javafx.application.LauncherImpl.launchApplication(LauncherImpl.java:328)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at sun.launcher.LauncherHelper$FXHelper.main(LauncherHelper.java:767)
Caused by: java.lang.RuntimeException: Unable to construct Application instance: class com.gluonapplication.Main
at com.sun.javafx.application.LauncherImpl.launchApplication1(LauncherImpl.java:907)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication$155(LauncherImpl.java:182)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.InstantiationException
at sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:819)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$175(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$173(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$174(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$148(WinApplication.java:191)
... 1 more
Exception running application com.gluonapplication.Main