digitaldocs-v2-teste
npm i
or
npm i --legacy-peer-deps
To fix version conflicts, that stops the installation process.
The --legacy-peer-deps flag was introduced with v7 as a way to bypass peerDependency auto-installation; it tells NPM to ignore peer deps and proceed with the installation anyway. This is how things used to be with NPM v4 thru v6.
yarn install
npm start
or
yarn start
npm run build or yarn build