خطا در ایجاد باندل redux در react native

سلام من expo react native یه پروژه ساده درست کردم که redux رو بهش اضافه کردم
ولی یه خطا بهم میده وقتی npm start میزنم و روی android میخوام اجراش کنم

//app.js
//react
import React  from 'react';

//redux
import { createStore} from 'redux' ;
import { Provider } from 'react-redux';

//root reducer
import RootReducer from '/store/RootReducer';

//expo
import { AppLoading } from "expo";
import { useFonts } from 'expo-font';

//Main navigation
import Main from "./navigation/Main";

export default function App() {

  //create store
  const store = createStore(RootReducer);

  //load fonts
  let [fontsLoaded] = useFonts({
    'vazir': require('./assets/fonts/Vazir.ttf'),
  });

  //render app if fonts loaded
  if (!fontsLoaded)
    return <AppLoading />
  else
    return (<Provider store={store}> <Main /> </Provider>)
}

//RootReducer.js
import { combineReducers } from "redux";
import user from "./reducers/user";

const RootReducer  = combineReducers({
    user : user
});

export default RootReducer ;

//user.js
import {LOGIN, LOGOUT} from "../actions/user";

const initialState = {
    user: null,
};

export default (state = initialState, action) => {

    switch(action.type){
        case LOGIN:
            return state.user = action.payload.user
        case LOGOUT:
            return state.user = null
        default:
            return state
    }

};

//main.js navigator 
import { createStackNavigator} from "react-navigation-stack";
import { createAppContainer } from "react-navigation";
import Login from "../screens/Login";
import Home from "../screens/Home";

const Main = createStackNavigator(
{
    Login : Login ,
    Home : Home ,
},
{
    defaultNavigationOptions: {
        layout: 'rtl' ,
        headerTitleAlign : 'center' ,
        headerTintColor : 'white' ,
        headerStyle : {
            backgroundColor : '#3949ab' ,
        }
    }
})

export default createAppContainer(Main) ;

فایل های پروژه بالاست

خطایی که نشون میده

Failed building JavaScript bundle.
Unable to resolve "/store/RootReducer" from "App.js"