Requiring unknown module "581".If you are sure the module is there, try restarting Metro Bundler

Question

I am trying to do simple navigation using react-native-navigation. But When I just import navagations.js file in homepage.js I am getting the error

Requiring unknown module "581".If you are sure the module is there, try restarting Metro Bundler. You may also want to run yarn, or npm install (depending on your environment).

My navigations.js

import { Navigation } from 'react-native-navigation';

export const goTo = () => Navigation.setRoot({
  root: {
    bottomTabs: {
      id: 'BottomTabsId',
      children: [
        {
          component: {
            name: 'HomePage',
            options: {
              bottomTab: {
                fontSize: 12,
                text: 'Varas Home',
                icon: './icons/home.png' )
              }
            }
          },
        },
{
  component: {
    name: 'EmployeeDetails',
      options: {
      bottomTab: {
        text: 'Varas details',
        fontSize: 12,
        icon: './icons/home.png')
      }
    }
  },
},
      ],
    }
  }
});

I am not sure whats wrong here?. I did not use anything such "Metro Bundler".