Configuring phpstorm support less automatically compile css

1. Installation node.js
2. Install less
   npm install less -g
3. Css compression plug mounted less-plugin-clean-css (This step is non-mandatory)
   NPM-plugin the install less -g-Clean-css

wind10 please note: -4048 error, an administrator can execute re-open a command line: Installation processes such as errno appear.
Note of the route red image above indicated, following use.

1. Configuration PhpStorm (Version: 2019.2)
   4-1 Open file watchers:. File-> Settings-> Tools-> File Watchers, File Watchers window click a '+' LESS selected, Less open window,
   according to the configuration shown, only two red box of options to change other default.
   

4-2. Now phpstorm in less editing file, it will automatically generate the corresponding css files.