碎片白页上的RecyclerView

我已经为tab创建了一个片段,并在这个片段中放置了一个recyclerview,请遵循以下代码:

片段1 Java:

@Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container,
                             Bundle savedInstanceState) {

        mView = inflater.inflate(R.layout.fragment_two, container, false);
        mRecyclerView = (RecyclerView) mView.findViewById(R.id.my_recycler_view);
        mRecyclerView.setHasFixedSize(true);
        mLayoutManager = new LinearLayoutManager(getContext());
        mRecyclerView.setLayoutManager(mLayoutManager);
        mAdapter = new MyRecyclerViewAdapter(getDataSet());
        mRecyclerView.setAdapter(mAdapter);

        return inflater.inflate(R.layout.fragment_two, container, false);
    }

片段1 XML:

    <android.support.v7.widget.RecyclerView
            android:id="@+id/my_recycler_view"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:scrollbars="vertical"/>

活动调用片段选项卡:

 private void setupViewPager(ViewPager viewPager) {
            ViewPagerAdapter adapter = new ViewPagerAdapter(getSupportFragmentManager());
            adapter.addFragment(new OneFragment(), "Cliente");
            adapter.addFragment(new TwoFragment(), "Prodotti");
            viewPager.setAdapter(adapter);
        }

        class ViewPagerAdapter extends FragmentPagerAdapter {
            private final List<Fragment> mFragmentList = new ArrayList<>();
            private final List<String> mFragmentTitleList = new ArrayList<>();

            public ViewPagerAdapter(FragmentManager manager) {
                super(manager);
            }

            @Override
            public Fragment getItem(int position) {
                return mFragmentList.get(position);
            }

            @Override
            public int getCount() {
                return mFragmentList.size();
            }

            public void addFragment(Fragment fragment, String title) {
                mFragmentList.add(fragment);
                mFragmentTitleList.add(title);
            }

            @Override
            public CharSequence getPageTitle(int position) {
                return mFragmentTitleList.get(position);
            }
        }

我没有任何错误,但是debug说:

E/RecyclerView: No adapter attached; skipping layout

我在谷歌上搜索过,但没有解决我的问题,你有什么建议吗??如果你需要更多的代码,尽管问,无论如何谢谢。