I've followed the instructions written in the README.md file for installing and setting up the development environment. However, when I do `npm start` my browser page is black and I only see an error in the console saying: > output.js:1 Failed to load resource: the server responded with a status of 404 (Not Found) Here is the screenshot: 
I've followed the instructions written in the README.md file for installing and setting up the development environment.
However, when I do
npm startmy browser page is black and I only see an error in the console saying:Here is the screenshot: