Why npm start is throwing events.js:187 throw er; // Unhandled 'error' event in my react project?

Question

While starting the server for the first time just after the code checkout , my react js project is throwing error \"events.js:187 throw er; // Unhandled \'error\'

Answer 1

Make sure all the global & local packages that are being used in the scripts are installed, I've spent hours debugging an issue while deploying an application because webpack-cli & yarn wasn't installed globally & my project was trying to access it locally.