Use this below command on project directory terminal and install all dependencies (most preferred visual studio)
npm install --save react-scripts, cors, path, nodemon, multer, react, react-toastify, html5-file-selector, express, body-parser, toast, react-dropzone-uploader
After cloning the project go to src->components->simple-dropzone.component.js ---- run this file 'npm start'
After running the simple-dropzone.component.js file go to root directory and run server.js ---- run this file 'npm run serve' ---- on new terminal as react is running on current terminal
Open http://localhost:3000 to view it in the browser.
The page will reload if you make edits.
You will also see any lint errors in the console.