我目前正在開發一個Discord機器人，我想部署一個名為Heroku的主機。
但是如果我想嘗試部署到Heroku，它會回傳一個錯誤。這是錯誤：
2021-12-14T16:25:08.161176 00:00 app[web.1]: > mystery-federation-bot@1.0.0 start /app
2021-12-14T16:25:08.161176 00:00 app[web.1]: > node index.js
2021-12-14T16:25:08.161177 00:00 app[web.1]:
2021-12-14T16:25:08.207168 00:00 app[web.1]: /app/node_modules/discord.js/src/rest/APIRequest.js:33
2021-12-14T16:25:08.207170 00:00 app[web.1]: agent ??= new https.Agent({ ...this.client.options.http.agent, keepAlive: true });
2021-12-14T16:25:08.207170 00:00 app[web.1]: ^^^
2021-12-14T16:25:08.207171 00:00 app[web.1]:
2021-12-14T16:25:08.207171 00:00 app[web.1]: SyntaxError: Unexpected token '??='
2021-12-14T16:25:08.207171 00:00 app[web.1]: at wrapSafe (internal/modules/cjs/loader.js:1001:16)
2021-12-14T16:25:08.207172 00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1049:27)
2021-12-14T16:25:08.207172 00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
2021-12-14T16:25:08.207172 00:00 app[web.1]: at Module.load (internal/modules/cjs/loader.js:950:32)
2021-12-14T16:25:08.207173 00:00 app[web.1]: at Function.Module._load (internal/modules/cjs/loader.js:790:12)
2021-12-14T16:25:08.207173 00:00 app[web.1]: at Module.require (internal/modules/cjs/loader.js:974:19)
2021-12-14T16:25:08.207173 00:00 app[web.1]: at require (internal/modules/cjs/helpers.js:93:18)
2021-12-14T16:25:08.207173 00:00 app[web.1]: at Object.<anonymous> (/app/node_modules/discord.js/src/rest/RESTManager.js:4:20)
2021-12-14T16:25:08.207174 00:00 app[web.1]: at Module._compile (internal/modules/cjs/loader.js:1085:14)
2021-12-14T16:25:08.207174 00:00 app[web.1]: at Object.Module._extensions..js (internal/modules/cjs/loader.js:1114:10)
謝謝回答我的問題！
uj5u.com熱心網友回復：
在 中package.json，請將其放入package.json：
"engines": {
"node": "16.x",
"npm": "7.x"
},
滿的：
{
"name": "your bot name",
"version": "1.0.0",
"description": "your bot description",
"main": "index.js",
"engines": {
"node": "16.x",
"npm": "7.x"
},
"scripts": {
"start": "node ."
},
"author": "your name",
"license": "MIT",
"dependencies": {
"discord.js": "^13.1.0"
}
}
信用：感謝@Zsolt Meszaros的回答。
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