升级到androidX后崩溃

我正在使用BottomNavigationViewEx库，并且在项目中升级了androidX。

BottomNavigationViewEx navigation = findViewById(R.id.navigation);
Logger.d(TAG, "navigation == null " + (navigation == null));

if (navigation != null) {
    navigation.setCurrentItem(2); // Line 170: This make crash
    navigation.setOnNavigationItemSelectedListener(mOnNavigationItemSelectedListener);

    navigation.setTextVisibility(false);

    navigation.enableAnimation(false);
    navigation.enableShiftingMode(false);
    navigation.enableItemShiftingMode(false);

    int iconSize = 36;
    navigation.setItemHeight(BottomNavigationViewEx.dp2px(this, iconSize + 16));
    navigation.setIconSize(iconSize, iconSize);
}

它生成下面的错误日志，并崩溃。 我该如何解决？

java.lang.NoSuchFieldException：类Lcom / google / android / material / bottomnavigation / BottomNavigationView中没有字段mMenuView；（“ com.google.android.material.bottomnavigation.BottomNavigationView”的声明出现在/data/app/com.calm_health.research-2/base.apk中），位于com的java.lang.Class.getDeclaredField（本机方法）。 com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx.getBottomNavigationMenuView（BottomNavigationViewEx.java:552）上的tian.com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx.java:802位于com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx.java .calm_health.com.researcher.MainActivity.onCreate（MainActivity.java:170）