firebase.auth().setPersistence错误为未定义的“Persistence”

我正在使用Firebase auth 处理表单中用户的身份验证,但我遇到此错误

未定义的“持久性”错误

添加时 firebase.auth().setPersistence .

onSubmit = event => {
  const { firebase } = this.props;
  const { email, password, remember } = this.state;
  firebase
    .doSignInWithEmailAndPassword(email, password, remember)
    .then(authUser => {
      firebase.doEmailUpdateUser(authUser);
    })
    .then(() => {
      this.setState({ error: null });
      navigate(ROUTES.INDEX);
    })
    .catch(error => {
      this.setState({
        error,
        errorOpen: true
      });
    });

  event.preventDefault();
};

鉴于 firebase.doSignInWithEmailAndPassword(email, password, remember) 是

doSignInWithEmailAndPassword = (email, password, remember) => {
  this.auth
    .setPersistence(
      `${
        remember
          ? this.auth.Auth.Persistence.LOCAL
          : this.auth.Auth.Persistence.SESSION
      }`
    )
    .then(() => this.auth.signInWithEmailAndPassword(email, password));
};

this.auth = app.auth();

我错过什么了吗?我做错了什么?