我正在测试一个电子应用程序，但出现了这个有害错误：

“TypeError：无法读取未定义的属性‘on’”

我所做的研究指出，要么是模块安装不当，要么是语法问题，要么是将未定义的变量传递给 app.on，我怀疑问题可能是 Electron 被错误地指向（现在它被指向以 electron\dist\electron.exe 结尾的文件夹，我听说这可能不是正确的位置），但我不确定。

尽管检查了 require 命令、语法，重新检查、卸载和重新安装节点，但我似乎无法让这个该死的错误消失。是什么原因造成的？

const electron = require('electron');
const os = require('os');
const fs = require('fs');
const app = electron.app;
const BrowserWindow = electron.BrowserWindow;
var Mousetrap = require('mousetrap');

const path = require('path');
const url = require('url');
const ipc = electron.ipcMain;

let mainWindow;


function createWindow () {
  // Create the browser window.
  mainWindow = new BrowserWindow({width: 800, height: 600})

  // and load the index.html of the app.
  mainWindow.loadURL(url.format({
    pathname: path.join(__dirname, 'index.html'),
    protocol: 'file:',
    slashes: true

/* More code in this and sub functions*/

  }))

  }
})

const preferencesManager = require('./preferencesManager');

/******
Send data to database given constructor created in preferencesManager
******/

// First instantiate the class because we want to turn the class into an object to be able to use.

const store = new Store({ //create a new getting and setting logic
  //We'll call our data file 'user-preferences'
  configName: 'user-preferences',
  defaults: {
    //800 x 600 is the default size of our window

    windowBounds: { width: 800, height: 600}
  }  

});





// When our app is ready, we'll create our BrowserWindow

app.on('ready',function(){

  //Set up a listener for what I've done in keycapture (in the renderer process)

      //???
  ipc.on('invokeAction', function(event, args){
    /* Do some action */
                });

});