Heroku部署Discord.js应用时遭遇权限拒绝错误求助

Hey there, let's fix this Heroku deployment issue for your Discord.js bot! Looking at your error logs, there are two key issues causing the permission denied error with node-pre-gyp, and we can resolve them step by step:

The log explicitly calls out "node_modules checked into source control" — this is the primary culprit here. Heroku needs to install dependencies from scratch in its isolated environment, and your local node_modules folder contains system-specific files that trigger permission conflicts during the build. Here's what to do:

• Delete your local node_modules folder and package-lock.json (or yarn.lock if you use Yarn)
• Open your .gitignore file and ensure it includes this line: node_modules/ (add it if it's missing)
• Commit these changes to Git:

  git add .gitignore
  git rm -r --cached node_modules
  git commit -m "Remove node_modules from Git and update .gitignore"
  

Your log shows "engines.node (package.json): unspecified" — using an unversioned Node environment can lead to compatibility problems with native packages like @discordjs/opus. Let's lock in a stable version:

• Open your package.json file and add an engines section. For Discord.js v14+ (the recommended current version), use Node 16.9 or higher. Example:

  "engines": {
    "node": "18.x",
    "npm": "8.x"
  }
  

• Commit this change to Git:

  git add package.json
  git commit -m "Specify Node.js and npm versions"
  

Push your updated code to Heroku to trigger a fresh build:

git push heroku main

If you still encounter issues after the above steps, clear Heroku's build cache to ensure a completely clean dependency install:

heroku repo:purge_cache -a your-app-name

Replace your-app-name with the exact name of your Heroku application.

内容的提问来源于stack exchange，提问作者224isgood