node. js installation Express prompt command is not found

Add the generator parameter when installing Express:

NPM install-g Express-generator

Why should we add generator?

The original Express band CLI now splits the CLI into a separate express-generator package. The original express run generated the project is node App.js, because the Httpserver related code is in App.js, now this part of the code moved to the project directory bin/www, app.js only the implementation of the logic code to implement the app, You need to run that bin/www. It's just a simple refinement of application and package dependent version changes.

Command explanation

• NPM Access NPM Package tool
• Install Installation
• Express-generator Express Generation Tool
• - G Global Supplement: Some items are command line tools written by node, at this time, install to increase the-G flag