[Vuejs]-Unable to Run Vue Js Project From Command Prompt

You’re trying to start main.js with node main.js, but that file is located under the src subdirectory in your screenshot (i.e., the command should’ve been node src/main.js).

But that directory structure looks like a Vue CLI generated project, so you should instead be using the NPM scripts (see package.json for available scripts) to start the development server:

npm run serve