在Heroku上成功部署Node js后，我遇到了应用程序错误[关闭]

Question

编辑问题以包括所需的行为、特定问题或错误以及重现问题所需的最短代码。这将帮助其他人回答问题。

这是我第一个使用节点的代码，它在locahost:3000上运行良好。下面是我检查日志后的错误：

```2021-08-31T11:16:54.000000+00:00 app[api]: Build succeeded
2021-08-31T11:16:57.474525+00:00 heroku[web.1]: Starting process with command `npm start`
2021-08-31T11:16:59.311657+00:00 app[web.1]: npm ERR! missing script: start
2021-08-31T11:16:59.314538+00:00 app[web.1]: 
2021-08-31T11:16:59.314674+00:00 app[web.1]: npm ERR! A complete log of this run can be found in:
2021-08-31T11:16:59.314721+00:00 app[web.1]: npm ERR!     /app/.npm/_logs/2021-08-31T11_16_59_312Z-debug.log
2021-08-31T11:16:59.351913+00:00 heroku[web.1]: Process exited with status 1
2021-08-31T11:16:59.406151+00:00 heroku[web.1]: State changed from starting to crashed
2021-08-31T11:17:31.920808+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/" host=web-facebock.herokuapp.com request_id=a8bc0829-78b8-4ed9-93f4-c389ee0dcb39 fwd="197.210.77.72" dyno= connect= service= status=503 bytes= protocol=https
2021-08-31T11:17:32.247223+00:00 heroku[router]: at=error code=H10 desc="App crashed" method=GET path="/favicon.ico" host=web-facebock.herokuapp.com request_id=d15e7971-6164-4dec-b761-0fd33b075dc4 fwd="197.210.76.123" dyno= connect= service= status=503 bytes= protocol=https```

Answer 1

您的包裹。json需要包含：

"scripts": {
    "start": "node your-script.js"
}

运行npm start时启动脚本丢失错误

对这个问题的回答同样详细。