When I deploy my Branch I get this error in logs

Here is the console log

Anyone can help me fix this?

CodePudding user response：

Nullish assignment is first supported in Node 15. It sounds like whatever version of Node your app is using is not to that point yet.

Specify a more recent Node version for Heroku to run in your package:

  "engines": {
    "node": "16.x"

otherwise it uses 14 by default (which is a slightly older LTS version which does not support this relatively new syntax).

CodePudding user response：

The new error might have come because discord.js was not listed in your package.json file. Try installing discord.js again and see if it works.