[Solved]Can't load the sytle in lemur

i can´t load the sytle with lemur
this is my code
package mygame;

import com.jme3.app.SimpleApplication;
import com.jme3.renderer.RenderManager;
import com.jme3.system.AppSettings;
import com.simsilica.lemur.Button;
import com.simsilica.lemur.Command;
import com.simsilica.lemur.Container;
import com.simsilica.lemur.GuiGlobals;
import com.simsilica.lemur.Label;
import com.simsilica.lemur.TextField;
import com.simsilica.lemur.PasswordField;
import com.simsilica.lemur.style.BaseStyles;

/**
 * This is the Main Class of your Game. You should only do initialization here.
 * Move your Logic into AppStates or Controls
 * @author normenhansen
 */
public class Main extends SimpleApplication {
private GameRunningState gameRunningState;
    private StartScreenState startScreenState;
    private ServerScreenState server;
    private CharactersScreenState charctersstate;
    private SettingsScreenState settings;
    public static void main(String[] args) {
       AppSettings settings = new AppSettings(true);
        settings.setTitle("Cats Rockets");
        settings.setResolution(1024, 800);
        //  settings.setUseJoysticks(true);

        Main app = new Main();
        app.setSettings(settings);
        app.setShowSettings(false);
        app.setDisplayStatView(false);
        app.setDisplayFps(false);
        app.start();
    }

    @Override
    public void simpleInitApp() {
       GuiGlobals.initialize(this);
  startScreenState = new StartScreenState();
        settings = new SettingsScreenState();
        server = new ServerScreenState();
        charctersstate = new CharactersScreenState();
        gameRunningState = new GameRunningState();


        stateManager.attach(startScreenState);
        // Load the 'glass' style
        BaseStyles.loadGlassStyle();

        // Set 'glass' as the default style when not specified
        GuiGlobals.getInstance().getStyles().setDefaultStyle("glass");

        // Create a simple container for our elements
        Container myWindow = new Container();
        guiNode.attachChild(myWindow);

        // Put it somewhere that we will see it
        // Note: Lemur GUI elements grow down from the upper left corner.
        myWindow.setLocalTranslation(400, 400, 0);

        // Add some elements
        
        myWindow.addChild(new Label("Username"));
        myWindow.addChild(new TextField(""));
        myWindow.addChild(new Label("Password"));
        myWindow.addChild(new PasswordField(""));
        Button clickMe = myWindow.addChild(new Button("Login"));
        clickMe.addClickCommands(new Command<Button>() {
           
                @Override
                public void execute( Button source ) {
                stateManager.detach(startScreenState); // Remove Yellow
                stateManager.attach(server);
                
                }
            });            
    }    

    

    @Override
    public void simpleUpdate(float tpf) {
        //TODO: add update code
    }

    @Override
    public void simpleRender(RenderManager rm) {
        //TODO: add render code
    }
}

an i have this error
run:
fev 20, 2017 6:52:07 PM com.jme3.system.JmeDesktopSystem initialize
INFO: Running on jMonkeyEngine 3.1-stable

  • Branch: HEAD
  • Git Hash: af04bf9
  • Build Date: 2017-02-19
    fev 20, 2017 6:52:07 PM com.jme3.system.lwjgl.LwjglContext printContextInitInfo
    INFO: LWJGL 2.9.3 context running on thread jME3 Main
  • Graphics Adapter: C:\windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_02838dee03d82b94\nvd3dumx,C:\windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_02838dee03d82b94\nvwgf2umx,C:\windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_02838dee03d82b94\nvwgf2umx,C:\windows\System32\DriverStore\FileRepository\nv_dispi.inf_amd64_02838dee03d82b94\nvwgf2umx
  • Driver Version: 21.21.13.7849
  • Scaling Factor: 1
    fev 20, 2017 6:52:07 PM com.jme3.renderer.opengl.GLRenderer loadCapabilitiesCommon
    INFO: OpenGL Renderer Information
  • Vendor: NVIDIA Corporation
  • Renderer: GeForce GT 640/PCIe/SSE2
  • OpenGL Version: 4.5.0 NVIDIA 378.49
  • GLSL Version: 4.50 NVIDIA
  • Profile: Compatibility
    fev 20, 2017 6:52:07 PM com.jme3.asset.AssetConfig loadText
    WARNING: Cannot find loader com.jme3.scene.plugins.blender.BlenderModelLoader
    fev 20, 2017 6:52:08 PM com.jme3.audio.openal.ALAudioRenderer initOpenAL
    INFO: Audio Renderer Information
  • Device: OpenAL Soft
  • Vendor: OpenAL Community
  • Renderer: OpenAL Soft
  • Version: 1.1 ALSOFT 1.15.1
  • Supported channels: 64
  • ALC extensions: ALC_ENUMERATE_ALL_EXT ALC_ENUMERATION_EXT ALC_EXT_CAPTURE ALC_EXT_DEDICATED ALC_EXT_disconnect ALC_EXT_EFX ALC_EXT_thread_local_context ALC_SOFT_loopback
  • AL extensions: AL_EXT_ALAW AL_EXT_DOUBLE AL_EXT_EXPONENT_DISTANCE AL_EXT_FLOAT32 AL_EXT_IMA4 AL_EXT_LINEAR_DISTANCE AL_EXT_MCFORMATS AL_EXT_MULAW AL_EXT_MULAW_MCFORMATS AL_EXT_OFFSET AL_EXT_source_distance_model AL_LOKI_quadriphonic AL_SOFT_buffer_samples AL_SOFT_buffer_sub_data AL_SOFTX_deferred_updates AL_SOFT_direct_channels AL_SOFT_loop_points AL_SOFT_source_latency
    fev 20, 2017 6:52:08 PM com.jme3.audio.openal.ALAudioRenderer initOpenAL
    WARNING: Pausing audio device not supported.
    fev 20, 2017 6:52:08 PM com.jme3.audio.openal.ALAudioRenderer initOpenAL
    INFO: Audio effect extension version: 1.0
    fev 20, 2017 6:52:08 PM com.jme3.audio.openal.ALAudioRenderer initOpenAL
    INFO: Audio max auxiliary sends: 4
    [jME3 Main] INFO com.simsilica.lemur.GuiGlobals - Initializing GuiGlobals with:com.simsilica.lemur.GuiGlobals@7866f160
    [jME3 Main] INFO com.simsilica.lemur.GuiGlobals - Lemur build date:20170212
    [jME3 Main] INFO com.simsilica.lemur.style.BaseStyles - loadStyleResource(com/simsilica/lemur/style/base/glass-styles.groovy)
    fev 20, 2017 6:52:08 PM com.jme3.app.LegacyApplication handleError
    SEVERE: Uncaught exception thrown in Thread[jME3 Main,5,main]
    java.lang.RuntimeException: Groovy scripting engine not available.
    at com.simsilica.lemur.style.StyleLoader.(StyleLoader.java:75)
    at com.simsilica.lemur.style.StyleLoader.(StyleLoader.java:62)
    at com.simsilica.lemur.style.BaseStyles.loadStyleResources(BaseStyles.java:72)
    at com.simsilica.lemur.style.BaseStyles.loadGlassStyle(BaseStyles.java:62)
    at mygame.Main.simpleInitApp(Main.java:52)
    at com.jme3.app.SimpleApplication.initialize(SimpleApplication.java:220)
    at com.jme3.system.lwjgl.LwjglAbstractDisplay.initInThread(LwjglAbstractDisplay.java:130)
    at com.jme3.system.lwjgl.LwjglAbstractDisplay.run(LwjglAbstractDisplay.java:211)
    at java.lang.Thread.run(Thread.java:745)

C:\Users\Pedro\AppData\Roaming.jmonkeyplatform\3.1.0-stable-FINAL\var\cache\executor-snippets\run.xml:53: Java returned: -1073740791
BUILD FAILED (total time: 12 seconds)

You need to have groovy-all.jar on your classpath.

ya i forget the put this library in my project