错误RecyclerView未连接适配器，跳过布局

Question

这是我的代码， 当我在android studio上运行时，它运行良好。但是当我连接手机时出现错误： E/RecyclerView: No adapter attached; skipping layout

    recyclerView = findViewById(R.id.recycleView_chat_activity);
    recyclerView.setHasFixedSize(true);
    LinearLayoutManager linearLayoutManager = new LinearLayoutManager(getApplicationContext());
    recyclerView.setLayoutManager(linearLayoutManager);
    linearLayoutManager.setStackFromEnd(true);
    chatAdapter = new ChatAdapter(listChats,ChatActivity.this);
    recyclerView.setAdapter(chatAdapter);
    //Load tin nhắn để hiển thị
    dataRef.child("Chats").child(currentUserID).child(chatUserID).addChildEventListener(new ChildEventListener() {
        @Override
        public void onChildAdded(@NonNull DataSnapshot dataSnapshot, @Nullable String s) {

                Chats chat = dataSnapshot.getValue(Chats.class);
                listChats.add(chat);
                chatAdapter.notifyDataSetChanged();
        }