Google Smart Home codelab 操作中的“firebase deploy”时出错答案

【问题标题】：Error when `firebase deploy`ing Google Smart Home codelab actionGoogle Smart Home codelab 操作中的“firebase deploy”时出错
【发布时间】：2018-08-10 11:15:39
【问题描述】：

我试图关注https://codelabs.developers.google.com/codelabs/smarthome-washer/#2

但我在第 3 步中遇到了 firebase deploy。

第一个错误：

Error: package.json in functions directory has an engines field which is unsupported. The only valid choices are: {"node": "8"} and {"node": "6"}.

在我将 package.json 文件更改为使用“node”：“8”后，出现以下错误：

Error: Error occurred while parsing your function triggers.

TypeError: Cannot read property 'databaseURL' of undefined
    at RepoManager.databaseFromApp (/Users/prafulll/code/personal/direkshanProjects/googleAssistant/smarthome-washer/washer-start/functions/node_modules/@firebase/database/dist/index.node.cjs.js:14985:39)
    at Object.instance.INTERNAL.registerService.Reference [as database] (/Users/prafulll/code/personal/direkshanProjects/googleAssistant/smarthome-washer/washer-start/functions/node_modules/@firebase/database/dist/index.node.cjs.js:15526:130)
    at FirebaseAppImpl._getService (/Users/prafulll/code/personal/direkshanProjects/googleAssistant/smarthome-washer/washer-start/functions/node_modules/@firebase/app/dist/index.cjs.js:134:66)
    at FirebaseAppImpl.(anonymous function) [as database] (/Users/prafulll/code/personal/direkshanProjects/googleAssistant/smarthome-washer/washer-start/functions/node_modules/@firebase/app/dist/index.cjs.js:323:31)
    at Object.serviceNamespace [as database] (/Users/prafulll/code/personal/direkshanProjects/googleAssistant/smarthome-washer/washer-start/functions/node_modules/@firebase/app/dist/index.cjs.js:308:32)
    at Object.<anonymous> (/Users/prafulll/code/personal/direkshanProjects/googleAssistant/smarthome-washer/washer-start/functions/index.js:28:30)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)

Having trouble? Try firebase deploy --help

我该怎么办？或者是否有人知道任何其他资源来学习构建 google home 操作？

【问题讨论】：

您是否尝试过使用节点 6？
是的，我做了@NickFelker 还是同样的错误
第 28 行发生了什么？你有什么改变吗？
没什么。还是一样——const firebaseRef = firebase.database().ref('/');
你能暂时回到以前版本的 firebase-tools 吗？ npm install firebase-tools@3.19.3。然后使用 ./node_modules/.bin/firebase deploy 调用 deploy。

标签： node.js firebase actions-on-google firebase-cli google-smart-home

【解决方案1】：

当我在 package.json 中安装了确切提到的依赖项时，我终于能够部署了。

我将 package.json 从 -

{
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  "engines": {
    "node": ">=6.11.1"
  },
  "dependencies": {
    "actions-on-google": "^2.1.0",
    "cors": "^2.8.4",
    "firebase": "^4.0.0",
    "firebase-admin": "^5.8.1",
    "firebase-functions": "^0.8.1",
    "google-auth-library": "^0.10.0",
    "googleapis": "^27.0.0"
  },
  "private": true,
  "devDependencies": {
    "eslint": "^4.19.1",
    "eslint-config-google": "^0.9.1"
  }
}

到-

{
  "name": "functions",
  "description": "Cloud Functions for Firebase",
  "engines": {
    "node": ">=6.11.1"
  },
  "dependencies": {
    "actions-on-google": "2.1.0",
    "cors": "2.8.4",
    "firebase": "4.0.0",
    "firebase-admin": "5.8.1",
    "firebase-functions": "0.8.1",
    "google-auth-library": "0.10.0",
    "googleapis": "27.0.0"
  },
  "private": true,
  "devDependencies": {
    "eslint": "4.19.1",
    "eslint-config-google": "0.9.1"
  }
}

将所有“^2.1.0”改为“2.1.0”

【讨论】：