离子启动器项目aws_user_pools_id未定义错误

Question

我正在使用离子团队亚马逊启动项目，当我完成这些步骤并尝试登录项目时出现此错误

ReferenceError: aws_user_pools_id is not defined
    at Cognito.webpackJsonp.199.Cognito.getUserPool (aws.cognito.ts:25)
    at Cognito.webpackJsonp.199.Cognito.makeUser (aws.cognito.ts:51)
    at user.ts:32
    at new t (polyfills.js:3)
    at User.webpackJsonp.40.User.login (user.ts:31)
    at LoginPage.webpackJsonp.39.LoginPage.login (login.ts:38)
    at Object.eval [as handleEvent] (LoginPage.html:5)
    at handleEvent (core.es5.js:11914)
    at callWithDebugContext (core.es5.js:13206)
    at Object.debugHandleEvent [as handleEvent] (core.es5.js:12794)

我不知道该怎么做。有人可以帮忙吗？