Java 聊天应用 更新令牌聊天片段 新版本

我正在创建一个聊天应用程序，我导入了这个3年的项目，所以很多事情都改变了，尤其是这个我无法修复的东西，有人能帮我吗？谢谢

给我的错误是:

com中的"updateToken(java.lang.String)".科德夫.聊天apply.碎片.ChatsFragment"无法应用于"(com.google.android.gms.tasks.Task&lt；java.lang.String&gt；)"

public class ChatsFragment extends Fragment {

private RecyclerView recyclerView;

private UserAdapter userAdapter;
private List<User> mUsers;

FirebaseUser fuser;
DatabaseReference reference;

private List<Chatlist> usersList;

@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
                         Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_chats, container, false);

    recyclerView = view.findViewById(R.id.recycler_view);
    recyclerView.setHasFixedSize(true);
    recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

    fuser = FirebaseAuth.getInstance().getCurrentUser();

    usersList = new ArrayList<>();

    reference = FirebaseDatabase.getInstance().getReference("Chatlist").child(fuser.getUid());
    reference.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            usersList.clear();
            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                Chatlist chatlist = snapshot.getValue(Chatlist.class);
                usersList.add(chatlist);
            }

            chatList();
        }

        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {

        }
    });

    updateToken(FirebaseMessaging.getInstance().getToken());


    return view;
}

private void updateToken(String token){
    DatabaseReference reference = FirebaseDatabase.getInstance().getReference("Tokens");
    Token token1 = new Token(token);
    reference.child(fuser.getUid()).setValue(token1);
}

private void chatList() {
    mUsers = new ArrayList<>();
    reference = FirebaseDatabase.getInstance().getReference("Users");
    reference.addValueEventListener(new ValueEventListener() {
        @Override
        public void onDataChange(@NonNull DataSnapshot dataSnapshot) {
            mUsers.clear();
            for (DataSnapshot snapshot : dataSnapshot.getChildren()){
                User user = snapshot.getValue(User.class);
                for (Chatlist chatlist : usersList){
                    if (user.getId().equals(chatlist.getId())){
                        mUsers.add(user);
                    }
                }
            }
            userAdapter = new UserAdapter(getContext(), mUsers, true);
            recyclerView.setAdapter(userAdapter);
        }

        @Override
        public void onCancelled(@NonNull DatabaseError databaseError) {

        }
    });
}