Acris and GXT 3.1.1 not Working?

Hello,

Is Acris working with GXT 3.1.1?

I have a class:

Code:

public class RuntimeForm extends Composite {
    interface DynamicallyFormUiBinder extends DynamicUiBinder<Widget, RuntimeForm> {}

    private static DynamicallyFormUiBinder uiBinder = GWT.create(DynamicallyFormUiBinder.class);
    
    interface RuntimeFormUiBinder extends UiBinder<Widget, RuntimeForm> {
    }
    
    public RuntimeForm() {
        uiBinder.setViewTemplate("<ui:UiBinder xmlns:ui=\"urn:ui:com.google.gwt.uibinder\" xmlns:gxt=\"urn:import:com.sencha.gxt.widget.core.client\" xmlns:button=\"urn:import:com.sencha.gxt.widget.core.client.button\">  <gxt:FramedPanel collapsible=\"true\" headingText=\"Example\"  pixelSize=\"100, 80\"> <button:TextButton  ui:field=\"exampleButton\" text=\"Click Me\" />  </gxt:FramedPanel> </ui:UiBinder>");
        initWidget(uiBinder.createAndBindUi(this));
    }

Code:

public class MainEntryPoint implements EntryPoint {

    /**
     * Creates a new instance of MainEntryPoint
     */
    public MainEntryPoint() {
    }

    /**
     * The entry point method, called automatically by loading a module that
     * declares an implementing class as an entry-point
     */
    public void onModuleLoad() {
     RootPanel.get().add(new RuntimeForm());
    }

When you start ... I have a blank page with no errors. Why?

Acris and GXT 3.1.1 not Working?