Heroku 应用程序错误，代码 = H10，状态 = 503

Question

我试图通过 heroku 部署我的网络应用程序。

我正确安装了 heroku CLI 并克隆了存储库。 但是，当我运行之后

$ git push heroku master

应用程序 web 出现“应用程序错误”，我运行

heroku logs --tail

它给了我结果：

2022-06-29T19:04:31.043262+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=memojune.herokuapp.com request_id=e7bf2276-a77e-427b-9f44-45af002beecc fwd="216.165.95.177" dyno= connect= service= status=503 bytes= protocol=https

2022-06-29T19:04:31.141866+00:00 heroku[路由器]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=memojune.herokuapp.com request_id= fd8fe6f2-04dd-4684-a0da-355e51e373bf fwd="216.165.95.177" dyno= connect= service= status=503 bytes= protocol=https 2022-06-29T19:08:37.546105+00:00 heroku[router]: at= error code=H10 desc="App crashed" method=GET path="/" host=memojune.herokuapp.com request_id=ff848c7f-07af-459e-be5e-c1a9feb19930 fwd="216.165.95.177" dyno= connect= service= status =503 字节= 协议=https 2022-06-29T19:08:37.631899+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host= memojune.herokuapp.com request_id=82f48e08-be43-4410-b49f-691525dd853a fwd="216.165.95.177" dyno= connect= service= status=503 bytes= protocol=https

它重复了几行。 有人可以告诉我问题出在哪里吗？

这是我的 Procfile 和 index.js

web: npm run start



import express from "express";
import mongoose from "mongoose";
import cors from "cors";
import dotenv from 'dotenv';
import postRoutes from "./routes/posts.js";
import userRoutes from "./routes/users.js";


const app = express();
dotenv.config();

app.use(express.json({ limit: "30mb", extended: true }));
app.use(express.urlencoded({ limit: "30mb", extended: true }));
app.use(cors()); //cors be above over routes
app.use('/posts', postRoutes);
app.use('/user', userRoutes);

const CONNECTION_URL = 'xxx';
const PORT = process.env.PORT || 5000;

mongoose.connect(CONNECTION_URL, { useNewUrlParser: true, useUnifiedTopology: true })
    .then(() => app.listen(PORT, () => console.log(`Server Running on Port: http://localhost:${PORT}`)))
    .catch((error) => console.log(error.message));