sh: react-scripts: command not found after running npm start

Tried all of the above and nothing worked so I used npm i react-scripts and it worked

Check if node_modules directory exists. After a fresh clone, there will very likely be no node_modules (since these are .gitignore'd).

Solution

run npm install (or yarn) to ensure all deps are downloaded.

Alternative Solution

If node_modules exists, remove it with rm -rf node_modules and then run npm install (or yarn).