how to automatic update file `.less` in custom theme magento2?

Question

In custom theme i have create file custom.less after Flush JavaScript/CSS Cache and Fersesh cache it compiling .less files to CSS. but after i change file custom.less this file not update. i tried set Client-side LESS compilation it not luck. So anysuggestion? Many thanks.

Answer 1

Try to re-deploy by command. Even if you are running in production mode

php bin/magento setup:static-content:deploy

Or you can do it manually by clear asserts and static files in

pub/static/frontend/[Vendor]/[YourTheme]/en_US/css

var/cache

var/view_preprocessed/css/frontend/[Vendor]/[YourTheme]/en_US/css

Answer 2

Follow below steps:-

Just add new custom file here

app\design\frontend\Vendor\Themename\web\css\source\_custom.less

and import this file in source file given path below

app\design\frontend\Vendor\Themename\web\css\source\_sources.less

import your file

(if there is not available _source.less file in your theme then go to vendor\magento\theme-frontend-blank\web\css\source folder and copy file in your custom theme)

@import '_custom.less';

1. clear cache
2. php bin/magento setup:static-content:deploy

and your _custom.less changes will compiling with your theme .less files.