错误 R10（启动超时）-> Web 进程未能在启动后 60 秒内绑定到 $PORT - HEROKU 错误

Question

我将 Node.js WebApp 部署到 heroku 但出现此错误

2021-06-01T09:19:42.615419+00:00 heroku[web.1]: State changed from crashed to starting
2021-06-01T09:19:47.259832+00:00 heroku[web.1]: Starting process with command `node app.js`
2021-06-01T09:19:51.146182+00:00 app[web.1]: Server is running on port 3001.
2021-06-01T09:20:47.916699+00:00 heroku[web.1]: Error R10 (Boot timeout) -> Web process failed to 
bind to $PORT within 60 seconds of launch
2021-06-01T09:20:47.989032+00:00 heroku[web.1]: Stopping process with SIGKILL
2021-06-01T09:20:48.124402+00:00 heroku[web.1]: Process exited with status 137
2021-06-01T09:20:48.196055+00:00 heroku[web.1]: State changed from starting to crashed
2021-06-01T09:24:45.072782+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET 
path="/" host=positate.herokuapp.com request_id=7e9ec2b1-5685-4c3f-9c29-6c03268b7c82 
fwd="157.51.56.186" dyno= connect= service= status=503 bytes= protocol=https
2021-06-01T09:24:46.540443+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET 
path="/favicon.ico" host=positate.herokuapp.com request_id=4ab44a6a-4795-4a4d-b32d-28d796845774 
fwd="157.51.56.186" dyno= connect= service= status=503 bytes= protocol=https

我在这里附上我的 app.js

 require("dotenv").config(); const express = require("express"); const app = express(); const ejs = require("ejs"); const mongoose = require("mongoose"); const session = require("express-session"); const passport = require("passport"); const passportLocalMongoose = require("passport-local-mongoose"); const GoogleStrategy = require("passport-google-oauth20").Strategy; const findOrCreate = require("mongoose-findorcreate"); const timestamp = require("mongoose-timestamp"); const MongoStore = require('connect-mongo'); const auth = require("./routes/auth"); const User = require("./database/models/user_model"); const blogRoute = require("./routes/blogRoute"); mongoose.connect(process.env.DB_URI, { useNewUrlParser: true, useUnifiedTopology: true, }); mongoose.set("useCreateIndex", true); mongoose.set("useFindAndModify", false); app.use(express.static("public")); app.set("view engine", "ejs"); app.use(express.urlencoded({ extended: true })); app.use(express.json()); app.use(session({ secret: "foo", saveUninitialized: false, resave: false, store: MongoStore.create({ mongoUrl: process.env.DB_URI, mongoOptions: { useUnifiedTopology: true }, collectionName: 'sessions', autoRemove: 'native', }) })); app.use(passport.initialize()); app.use(passport.session()); passport.use(User.createStrategy()); passport.serializeUser(function (user, done) { done(null, user.id); }); passport.deserializeUser(function (id, done) { User.findById(id, function (err, user) { done(err, user); }); }); passport.use( new GoogleStrategy( { clientID: process.env.GOOGLE_CLIENT_ID, clientSecret: process.env.GOOGLE_CLIENT_SECRET, callbackURL: "http://localhost:3001/auth/google/positate" || "https://positate.herokuapp.com/auth/google/positate", }, function (accessToken, refreshToken, profile, cb) { User.findOrCreate( { googleId: profile.id, name: profile.displayName, username: profile.emails[0].value, image: profile.photos[0].value, }, function (err, user) { return cb(err, user); } ); } ) ); app.get("/", (req, res) => { res.render("Landing"); }); app.use("/", auth); app.use("/blog", blogRoute); app.use("/", blogRoute); app.use("/category", blogRoute); app.listen(3001 || process.env.PORT, '0.0.0.0', () => { console.log("Server is running."); });

这是我的 Procfile

{
  "name": "positate",
  "version": "1.0.0",
  "description": "",
  "main": "app.js",
  "engines": {
    "node": "14.15.4",
    "npm": "6.14.10"
  },
  "scripts": {
    "start": "node app.js"
  },
  "author": "",
  "license": "ISC",
  "dependencies": {
    "connect-mongo": "^4.4.1",
    "dotenv": "^10.0.0",
    "ejs": "^3.1.6",
    "express": "^4.17.1",
    "express-session": "^1.17.2",
    "mongoose": "^5.12.11",
    "mongoose-findorcreate": "^3.0.0",
    "mongoose-timestamp": "^0.6.0",
    "passport": "^0.4.1",
    "passport-google-oauth20": "^2.0.0",
    "passport-local": "^1.0.0",
    "passport-local-mongoose": "^6.1.0"
  }
}

这是我的 package.json

 { "name": "positate", "version": "1.0.0", "description": "", "main": "app.js", "engines": { "node": "14.15.4", "npm": "6.14.10" }, "scripts": { "start": "node app.js" }, "author": "", "license": "ISC", "dependencies": { "connect-mongo": "^4.4.1", "dotenv": "^10.0.0", "ejs": "^3.1.6", "express": "^4.17.1", "express-session": "^1.17.2", "mongoose": "^5.12.11", "mongoose-findorcreate": "^3.0.0", "mongoose-timestamp": "^0.6.0", "passport": "^0.4.1", "passport-google-oauth20": "^2.0.0", "passport-local": "^1.0.0", "passport-local-mongoose": "^6.1.0" } }

我为此错误尝试了各种解决方案，但无法解决。 在过去的三天里，我一直在努力解决这个问题。 请帮我解决这个错误 非常感谢您提前。

Answer 1

问题是您定义端口的方式，它始终在3001上运行，这在 Heroku 上是不可能的，您需要绑定$PORT环境变量。
更改您的代码以首先检查是否定义了process.env.PORT （它将位于 Heroku 但在您的本地开发环境中默认为 3001）

app.listen(process.env.PORT || 3001, '0.0.0.0', () => {
  console.log("Server is running.");
});

请参阅Heroku 上的 NodeJS

Answer 2

从 package.json 中卸下引擎，然后再次尝试运行它。 似乎存在与此相关的问题

资源

Answer 3

我有同样的问题，它让我发疯了很长时间。

解决方法是将我的网络服务器配置为执行以下两项操作：

1. 自动从process.env.PORT获取端口（也称为$PORT环境变量。Heroku 在部署时自动设置。）
2. 在地址0.0.0.0明确收听（ locahost不起作用！）

---

原来 Heroku 已经在他们的帮助指南中解释了这一点：

在极少数情况下，您的应用可能正在使用process.env.PORT ，但仍可能无法绑定。 这可能是由于应用程序尝试在localhost上绑定造成的。 相反，您可能需要将其更改为0.0.0.0 。