我的敏Android Sdk 14，但我的应用程序无法在android 6.0及更低版本上运行？

Question

我的应用程序具有minSdkVersion14。我的应用程序的欢迎屏幕运行正常，但第二个活动在Android 6.0及更低版本上崩溃了。

我的build.gradle

我有问题的活动

    Intent IntWellcome = getIntent();
    //----Get Card Count From Previous Activity
    final Integer HowMuchCard = IntWellcome.getIntExtra("StartUpCardCount", 0);

    final GridLayout CardGrid = (GridLayout) findViewById(R.id.CardHolder);

    //----MyCard is my class that defines card properties.
    final MyCard Cards[] = new MyCard[HowMuchCard];


    for (int i = 0; i < HowMuchCard; i++) {
        Cards[i] = new MyCard(this, i, HowMuchCard);
        Cards[i].setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                final MyCard k = (MyCard) view;
                k.Turn();
                k.setClickable(false);ClickError=0;
                TextView TVMyScore = (TextView)findViewById(R.id.TVScore);
                TVMyScore.setText(Integer.toString(point));
                if (LastCard > -1) {
                    final MyCard k2 = (MyCard) findViewById(LastCard);
                    //k2.Turn();
                    if ((k2.FrontSideID == k.FrontSideID) && (k2.getId() != k.getId())) {
                        //Match
                        k2.Turnable=false;
                        k.Turnable=false;

                        k.setBackgroundResource(R.drawable.rocket_thrust);
                        k2.setBackgroundResource(R.drawable.rocket_thrust);
                        rocketAnimation = (AnimationDrawable) k.getBackground();
                        rocketAnimation.start();
                        rocketAnimation = (AnimationDrawable) k2.getBackground();
                        rocketAnimation.start();

                        Handler h = new Handler();
                        h.postDelayed(new Runnable() {
                            @Override
                            public void run() {
                                k.setVisibility(View.INVISIBLE);
                                k2.setVisibility(View.INVISIBLE);
                            }
                        },600);

                        //k.setVisibility(View.INVISIBLE);
                        //k2.setVisibility(View.INVISIBLE);
                        score++;
                        point = point+(100);
                        LastCard = -1;
                        TVMyScore.setText(Integer.toString(point));

                        if(score==(HowMuchCard/2)){
                            CardGrid.setVisibility(View.GONE);
                            TextView TVMyCongratMessage = (TextView)findViewById(R.id.TVCongrats);
                            TVMyCongratMessage.setVisibility(View.VISIBLE);
                            //oyun bitti
                        }
                    } else {
                        point = point - 10;
                        TVMyScore.setText(Integer.toString(point));
                        LastCard=-1;
                        Handler h = new Handler();
                        h.postDelayed(new Runnable() {
                            @RequiresApi(api = Build.VERSION_CODES.JELLY_BEAN)
                            @Override
                            public void run() {
                                k.Turn();
                                k2.Turn();
                                k.setClickable(true);
                                k2.setClickable(true);
                            }
                        },500);
                    }
                } else {
                    LastCard = k.getId();
                }
            }
        });
    }
    //------Shuffle Cards
    for (int i = 0; i < (HowMuchCard); i++) {
        int rg = (int) (Math.random() * HowMuchCard);
        MyCard k = Cards[rg];
        Cards[rg] = Cards[i];
        Cards[i] = k;
    }

    //-----Put Cards in GridLayout
    for (int j = 0; j < HowMuchCard; j++) {
        CardGrid.addView(Cards[j]);
    }

此代码块可在Android 7.0和其他版本上完美运行。但是在Android 6.0及更早版本上进行欢迎活动后，它永远无法工作。

它说：“不幸的是，MyApp已停止”。我的哪个代码不适合Android 6.0及更低版本？

这是堆栈跟踪

    10-15 14:14:04.232 3749-3749/greyworkssoftware.memoryskills E/AndroidRuntime: FATAL EXCEPTION: main
Process: greyworkssoftware.memoryskills, PID: 3749
java.lang.RuntimeException: Unable to start activity ComponentInfo{greyworkssoftware.memoryskills/greyworkssoftware.memoryskills.CardsActivity}: android.content.res.Resources$NotFoundException: Resource ID #0x7f060066
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2416)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476)
    at android.app.ActivityThread.-wrap11(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:148)
    at android.app.ActivityThread.main(ActivityThread.java:5417)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
 Caused by: android.content.res.Resources$NotFoundException: Resource ID #0x7f060066
    at android.content.res.Resources.getValue(Resources.java:1351)
    at android.content.res.Resources.getDrawable(Resources.java:804)
    at android.content.Context.getDrawable(Context.java:458)
    at android.support.v4.content.ContextCompat.getDrawable(ContextCompat.java:351)
    at greyworkssoftware.memoryskills.MyCard.<init>(MyCard.java:99)
    at greyworkssoftware.memoryskills.CardsActivity.onCreate(CardsActivity.java:81)
    at android.app.Activity.performCreate(Activity.java:6237)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1107)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2369)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2476) 
    at android.app.ActivityThread.-wrap11(ActivityThread.java) 
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344) 
    at android.os.Handler.dispatchMessage(Handler.java:102) 
    at android.os.Looper.loop(Looper.java:148) 
    at android.app.ActivityThread.main(ActivityThread.java:5417) 
    at java.lang.reflect.Method.invoke(Native Method) 
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) 
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)