How to use magento UI library in custom _module.less file?

Question

I have created module specific less file in magento according to guide at below location.

app/code/Modulenamespace/Modulename/view/frontend/web/css/source/_module.less

Now I want to be able use magento 2 default ui library inside _module.less file. So how can I add reference to _lib.less file so that I can use all available mixins and variables inside my _module.less?

I know I can do that in _extend.less but how to in case of _module.less Currently php bin/magento setup:static-content:deploy -fgives error when using library.

Thanks in advance.

Solution has been found as I had defined my new variable and mixins in _extend.less and _module.less was not able to use those variables and therefore I was getting errors.

Answer 1

I can use magento UI library in _module.less but not my custom new variables (e.g.declared for new breakpoints and so on) in _extend.less.

Now as _module.less is imported though @magento_import directive and therefore all files named _module.less from all modules will be imported but it has no connection with _extend.less file because in hierarchy _extend.less is imported at last.