The installation process for node. JS Express

1. After configuring the NODEJS environment variable, execute npm install-g Express command;

2. If the version is 4.x, the npm install-g express-generator command needs to be executed again to install the tool;

3. If the installation is successful by using EXPRESS-V, the version number is displayed if successful, otherwise "not valid execution ..." will appear. " and other error prompts;

4. If you need to introduce express to the bottom of your project directory after successful installation, you may occasionally get a cannot find module ' Express ' Error prompt, then execute NPM install in the current project directory Express command can be;

The installation process for node. JS Express