错误：（14,26）错误：包com.android.molley不存在

Question

我是Android工作室的新手，当我导入此代码并重建项目时，我发现此错误消息，我的问题是如何解决此问题： 错误：（14,26）错误：包com.android.molley不存在 错误：（30,16）错误：找不到符号类SetContentView

这是我的代码：

import org.cocos2dx.lib.Cocos2dxActivity;
import org.cocos2dx.lib.Cocos2dxGLSurfaceView;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.WindowManager;
import android.widget.Toast;

import com.android.molley.SetContentView;
import com.google.android.gms.games.GamesActivityResultCodes;
import com.secrethq.ads.PTAdAdMobBridge;
import com.secrethq.ads.PTAdAppLovinBridge;
import com.secrethq.ads.PTAdChartboostBridge;
import com.secrethq.ads.PTAdFacebookBridge;
import com.secrethq.ads.PTAdHeyzapBridge;
import com.secrethq.ads.PTAdLeadBoltBridge;
import com.secrethq.ads.PTAdRevMobBridge;
import com.secrethq.store.PTStoreBridge;
import com.secrethq.utils.PTJniHelper;
import com.secrethq.utils.PTServicesBridge;

public class PTPlayer extends Cocos2dxActivity {

private static native void loadModelController();
public static SetContentView setContentView;
public static Activity activity;
public static Context context;
public static boolean wait = true;