类型错误：_firebase__WEBPACK_IMPORTED_MODULE_4__.default.auth 不是 function

Question

我已经完成登录并登录到应用程序。 我还使用实时数据库，并希望将用户事务添加到数据库中以分配给他们的帐户。 不幸的是，我在添加 firebaseDb.auth() 后出现错误。 当前用户.uid。

错误：

类型错误： firebase__WEBPACK_IMPORTED_MODULE_4 _.default.auth 不是 function

firebaseDb ->.child("Expenses/" + firebaseDb.auth().currentUser.uid).on("value", (snapshot) => {

代码：

const ExpensesList = () => {
  const [currentId, setCurrentId] = useState("");
  const [RelatedPersonsObjects, setRelatedPersonsObjects] = useState({});
  const [show, setShow] = useState(false);
  const handleClose = () => setShow(false);
  const handleShow = () => setShow(true);

  useEffect(() => {
    firebaseDb
      .child("Expenses/" + firebaseDb.auth().currentUser.uid)
      .on("value", (snapshot) => {
        if (snapshot.val() != null)
          setRelatedPersonsObjects({
            ...snapshot.val(),
          });
        else setRelatedPersonsObjects({});
      });
  }, []);

  const addOrEdit = (obj) => {
    if (currentId === "")
      firebaseDb.child("Expenses/ + firebaseDb.auth().currentUser.uid").push(obj, (err) => {
        if (err) console.log(err);
        else setCurrentId("");
      });
  };

firebase 配置

import firebase from "firebase/app";
import "firebase/database";
import "firebase/auth";

var firebaseConfig = {
  apiKey: "x",
  authDomain: "x",
  projectId: "x",
  storageBucket: "x",
  messagingSenderId: "x",
  appId: "x",
};

var fireDb = firebase.initializeApp(firebaseConfig);
export const auth = firebase.auth();

export default fireDb.database().ref();