I have a LoginActions.js files that looks like this : 

```
'use strict';

import alt from '../alt';
import LoginUtils from '../utils/login';

class LoginActions {

  loginSuccess(me) {
    return me;
  }

  loginFailed(err) {
    return err;
  }

  loginCancelled() {
    return function (dispatch) {
      dispatch()
    }
  }

  logout() {
    return function (dispatch) {
      dispatch()
    }
  }

  login() {
    return (dispatch) => {
      dispatch()
      LoginUtils.facebook((err, me) => {
        if (err === 'cancelled') {
          return this.loginCancelled();
        }
        if (err) {
          return this.loginFailed(err);
        }
        this.loginSuccess(me);
      });
    }
  }
}

export default alt.createActions(LoginActions);

```

And a Store that looks like this : 

```
'use strict';

import alt from '../alt';
import _ from 'lodash';

import LoginActions from '../actions/LoginActions';
// import MeActions from '../actions/MeActions';
import CachedStore from './CachedStore';

class MeStore extends CachedStore {

  constructor () {
    super();

    this.me = {};

    this.bindListeners({
      handleLoginSuccess: LoginActions.LOGIN_SUCCESS,
      handleLoginFailed: LoginActions.LOGIN_FAILED,
      handleLogout: LoginActions.LOGOUT,
      handleLogin: LoginActions.LOGIN,
      handleLoginCancelled: LoginActions.LOGIN_CANCELLED
    });
  }

... // all handlers are defined here

```

Yet, I don't understand why I have the error below...
I followed the steps explained here : <https://github.com/goatslacker/alt>

[![enter image description here](https://i.stack.imgur.com/Cdjiw.png)](https://i.stack.imgur.com/Cdjiw.png)