【发布时间】：2018-10-18 20:09:20
【问题描述】：
我有一个表单，我可以在其中提交图像并将它们上传到 Firebase。我在本地构建了该项目，但是当我将其推送到 Heroku 时，它就中断了。
快递：
var gcs = require( 'multer-gcs' );
var storage = gcs({
filename : function( req, file, cb ) {
cb( null, file.fieldname + '-' + Date.now() );
},
bucket : 'mybucket.appspot.com', // Required : bucket name to upload
projectId : 'mybucket', // Required : Google project ID
keyFilename : './mybucket-firebase-adminsdk-4oyba-xee555bbgr.json', // Required : JSON credentials file for Google Cloud Storage
acl : 'publicread' // Optional : Defaults to private
});
const multer = require('multer');
var upload = multer({storage: storage});
app.post('/sell', upload.any(), homeController.postSellPage);
第一个错误代码（来自Heroku Logs）：
Error: Cannot find module 'multer-gcs'
at Function.Module._resolveFilename (module.js:469:15)
at Function.Module._load (module.js:417:25)
at Module.require (module.js:497:17)
at require (internal/module.js:20:19)
at Module._compile (module.js:570:32)
at Object.Module._extensions..js (module.js:579:10)
at Module.load (module.js:487:32)
at Object.<anonymous> (/app/app.js:22:11)
at Function.Module._load (module.js:438:3)
at Module.runMain (module.js:604:10)
at run (bootstrap_node.js:394:7)
at tryModuleLoad (module.js:446:12)
at startup (bootstrap_node.js:149:9)
at bootstrap_node.js:509:3
然后我运行以下命令来更新我的package.json：npm install multer-gcs --save，它安装了，同时给了我这个消息：
deprecated gcloud@0.36.0: gcloud has been renamed to google-cloud. To get new features and bug fixes, you must use the new package.
我不知道如何处理该消息，所以在提交新的package.json 之后，除了重新推送到 heroku 之外，我什么也没做。我遇到了以下问题：
Build failed
Outdated Yarn lockfile
Your application contains a Yarn lockfile (yarn.lock) which does not
match the dependencies in package.json. This can happen if you use npm
to install or update a dependency instead of Yarn.
Please run the following command in your application directory and check
in the new yarn.lock file:
$ yarn install
$ git add yarn.lock
$ git commit -m "Updated Yarn lockfile"
$ git push heroku master
https://kb.heroku.com/why-is-my-node-js-build-failing-because-of-an-outdated-yarn-lockfile
然后我跑了yarn install，但得到了
The engine "node" is incompatible with this module. Expected version "6.9.5".
Found incompatible module
Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.
所以我在 package.json 中查看了以下内容，其中包括节点 6.9.5，所以我认为我在这方面没问题。
"engines": {
"node": "6.9.5",
"npm": "4.6.1",
"yarn": "1.3.2"
},
然后我运行yarn install --ignore-engines，基于关于同一问题的帖子。这给了我以下信息：
/Users/user/path/node_modules/gcloud/node_modules/grpc: Command failed.
Exit code: 127
Command: ./node_modules/.bin/node-pre-gyp install --fallback-to-build
根据另一个帖子，我尝试运行此命令npm install --unsafe-perm，但grpc 再次出现此问题。
我很想得到任何关于如何让 heroku 接受/运行构建的帮助，因为我对这个感到困惑。如果需要任何澄清，请告诉我。
根据要求，package.json：
{
"name": "App Name",
"version": "0.0.2",
"description": "Amazing Application",
"engines": {
"node": "6.9.5",
"npm": "4.6.1",
"yarn": "1.3.2"
},
"repository": {
"type": "git",
"url": "https://github.com/amazing_app.git"
},
"author": "Example",
"license": "Example",
"scripts": {
"start": "node app.js",
"test": "mocha --reporter spec",
"postinstall": "npm rebuild node-sass"
},
"dependencies": {
"aws-sdk": "^2.46.0",
"bcrypt-nodejs": "^0.0.3",
"bluebird": "^3.4.7",
"body-parser": "^1.15.2",
"chalk": "^1.1.3",
"cheerio": "^0.22.0",
"clockwork": "^0.1.4",
"compression": "^1.6.2",
"connect-mongo": "^1.3.2",
"dotenv": "^4.0.0",
"errorhandler": "^1.4.3",
"express": "^4.14.0",
"express-flash": "^0.0.2",
"express-session": "^1.14.2",
"express-status-monitor": "^0.1.5",
"express-validator": "^3.1.2",
"fbgraph": "^1.3.0",
"firebase": "^3.9.0",
"firebase-admin": "^4.2.1",
"github": "^9.2.0",
"grpc": "1.3.8",
"instagram-node": "^0.5.8",
"lastfm": "^0.9.2",
"lob": "^3.9.0",
"lusca": "^1.4.1",
"mongoose": "^4.6.6",
"morgan": "^1.7.0",
"multer": "^1.3.0",
"multer-gcs": "^1.0.2",
"node-base64-image": "^1.0.3",
"node-foursquare": "^0.3.0",
"node-linkedin": "^0.5.4",
"node-sass-middleware": "^0.11.0",
"nodemailer": "^3.1.7",
"passport": "0.3.2",
"passport-facebook": "^2.1.1",
"passport-github": "^1.1.0",
"passport-google-oauth": "^1.0.0",
"passport-instagram": "^1.0.0",
"passport-linkedin-oauth2": "^1.4.1",
"passport-local": "^1.0.0",
"passport-oauth": "^1.0.0",
"passport-openid": "^0.4.0",
"passport-twitter": "^1.0.4",
"paypal-rest-sdk": "^1.7.0",
"pug": "^2.0.0-beta6",
"request": "^2.78.0",
"stripe": "^4.12.0",
"tumblr.js": "^1.1.1",
"twilio": "^3.3.1-edge",
"twit": "^2.2.5",
"validator": "^7.0.0"
},
"devDependencies": {
"chai": "^3.5.0",
"eslint": "^3.9.1",
"eslint-config-airbnb-base": "^11.0.0",
"eslint-plugin-import": "^2.1.0",
"mocha": "^3.1.2",
"supertest": "^3.0.0"
},
"eslintConfig": {
"extends": "airbnb-base",
"rules": {
"comma-dangle": 0,
"consistent-return": 0,
"no-param-reassign": 0,
"no-underscore-dangle": 0,
"no-shadow": 0,
"no-console": 0,
"no-plusplus": 0
}
}
}
**注意：**只有在我取消注释 Express 下的内容时才会中断（如上所示）。
更新：
当我将 AWS 与 Multer var multerS3 = require('multer-s3');var s3 = new aws.S3({}); 一起使用时，应用程序将成功发布到 Heroku，因此它必须与 GCS 及其依赖项有关
【问题讨论】：
标签： node.js heroku grpc yarnpkg