Ensure you are using Node.js 16. If you use nvm, run:

nvm install 16
nvm use 16

If you use Node.js 17 or newer, you may need to run your commands with the NODE_OPTIONS=--openssl-legacy-provider environment variable due to an OpenSSL compatibility issue with Vue CLI 4.

npm install

npm run serve

npm run build

After building, you can preview the production files locally with:

npx serve -s dist

npm run lint

See Configuration Reference.