Electron Import Error in Renderer Process

index.js?bdb9:7 Uncaught TypeError: fs.existsSync is not a function
    at getElectronPath (index.js?bdb9:7)
    at eval (index.js?bdb9:18)
    at Object../node_modules/electron/index.js (chunk-vendors.js:2325)
    at __webpack_require__ (app.js:849)
    at fn (app.js:151)
    at eval (notes-directory.js?b80e:1)
    at Module../src/plugins/notes-directory.js (app.js:1691)
    at __webpack_require__ (app.js:849)
    at fn (app.js:151)
    at eval (main.js:16)

import Vue from 'vue'
import electron from 'electron'

Vue.use({
  install: function() {
    console.log('Electron', electron)
  }
})

import Vue from 'vue'
const electron = window.require('electron')

Vue.use({
  install: function() {
    console.log('Electron', electron)
  }
})