Android 带有admob的libGDX应用程序抛出NoClassDefFoundError

请帮助我找出为什么下面注释掉的行会导致

NoClassDefFoundError

@Override
public void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);             
    RelativeLayout layout = new RelativeLayout(this);  
    requestWindowFeature(Window.FEATURE_NO_TITLE);
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, 
                    WindowManager.LayoutParams.FLAG_FULLSCREEN);
    getWindow().clearFlags(WindowManager.LayoutParams.FLAG_FORCE_NOT_FULLSCREEN);

    View gameView = initializeForView(new GraphicsView(), false);
    // ERROR comes from these lines:
    // AdView adView = new AdView(this, AdSize.BANNER, "a14fd65977f0c9f");
    // adView.loadAd(new AdRequest());

    RelativeLayout.LayoutParams adParams = 
            new RelativeLayout.LayoutParams(RelativeLayout.LayoutParams.WRAP_CONTENT, 
                            RelativeLayout.LayoutParams.WRAP_CONTENT);
    adParams.addRule(RelativeLayout.ALIGN_PARENT_TOP);
    adParams.addRule(RelativeLayout.ALIGN_PARENT_RIGHT);

    layout.addView(gameView);
    setContentView(layout);
}

I您必须在项目根目录中创建一个“libs”文件夹。不是“lib”，“lib”。并将Admob jar放在那里，同时检查其是否已在-Properties->Build Path中导出

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有一次出错：p

你的错误在哪里？如果没有它，调试将很困难…06-12 02:06:39.199:W/dalvikvm（15068）：VFY：无法解析虚拟方法6580:Lcom/google/ads/AdView；。setVisibility（I）V 06-12 02:06:39.739:W/dalvikvm（15068）：threadid=1：线程以未捕获异常退出（group=0x40020560）06-12 02:06:39.749:E/AndroidRuntime（15068）：致命异常：main 06-12 02:06:39.749:E/AndroidRuntime（15068）：java.lang.NoClassDefFoundError:com.google.ads.AdView 06-12 02:06:39.749:E/AndroidRuntime（15068）：位于ru.bk.sobaka.n.e.k.GameActivity.onCreate（GameActivity.java:112）完整日志