ViewPager$LayoutParams, a LinearLayout$LayoutParams.

Cześć, mam taki problem mam viewPager, do którego chce wrzucić swój klase CustomCalendarView(która rozszerza linearLayout):

public class CalendarViewPagerAdapter extends PagerAdapter {

    private Context mContext;
    private View view;

    public CalendarViewPagerAdapter(Context mContext) {
        this.mContext = mContext;
    }

    @Override
    public int getCount() {
        return Integer.MAX_VALUE;
    }

    @Override
    public boolean isViewFromObject(View view, Object object) {
        return view == object;
    }

    @Override
    public Object instantiateItem(ViewGroup container, int position) {
        LayoutInflater inflater = (LayoutInflater) mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
        view = inflater.inflate(R.layout.calendar_viewpager_item, container);
        CustomCalendarView calendarView = (CustomCalendarView) view.findViewById(R.id.calendar_view);

       container.addView(calendarView);
        return view;
    }

    @Override
    public void destroyItem(ViewGroup container, int position, Object object) {
        container.removeView((RelativeLayout) object);
    }
}

źródłem błędów, jest ta linijka container.addView(calendarView);
A o to logi które się pojawiają

 java.lang.ClassCastException: android.support.v4.view.ViewPager$LayoutParams cannot be cast to android.widget.LinearLayout$LayoutParams
            at android.widget.LinearLayout.measureHorizontal(LinearLayout.java:1010)
            at android.widget.LinearLayout.onMeasure(LinearLayout.java:590)
            at android.view.View.measure(View.java:16650)
            at android.support.v4.view.ViewPager.onMeasure(ViewPager.java:1489)
            at android.view.View.measure(View.java:16650)
            at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:719)
            at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:455)
            at android.view.View.measure(View.java:16650)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5129)
            at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
            at android.view.View.measure(View.java:16650)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5129)
            at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
            at android.view.View.measure(View.java:16650)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5129)
            at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1404)
            at android.widget.LinearLayout.measureVertical(LinearLayout.java:695)
            at android.widget.LinearLayout.onMeasure(LinearLayout.java:588)
            at android.view.View.measure(View.java:16650)
            at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:5129)
            at android.widget.FrameLayout.onMeasure(FrameLayout.java:310)
            at com.android.internal.policy.impl.PhoneWindow$DecorView.onMeasure(PhoneWindow.java:2295)
            at android.view.View.measure(View.java:16650)
            at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:1916)
            at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:1113)
            at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:1295)
            at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:1000)
            at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:5625)
            at android.view.Choreographer$CallbackRecord.run(Choreographer.java:761)
            at android.view.Choreographer.doCallbacks(Choreographer.java:574)
            at android.view.Choreographer.doFrame(Choreographer.java:544)
            at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:747)
            at android.os.Handler.handleCallback(Handler.java:733)
            at android.os.Handler.dispatchMessage(Handler.java:95)
            at android.os.Looper.loop(Looper.java:136)
            at android.app.ActivityThread.main(ActivityThread.java:5124)
            at java.lang.reflect.Method.invokeNative(Native Method)
            at java.lang.reflect.Method.invoke(Method.java:515)
            at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:797)
            at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:613)
            at dalvik.system.NativeStart.main(Native Method)