We are developing a custom theme for our Front Store view so we need to use multiple .less files in web/css/source. with the help of Grunt.js, the development makes us faster than manually generating less to CSS. so when I run the grunt watch:our-theme command only the _extend.less file compiles to the pub directory
so I need clarification about Grunt.js and how to set up with multiple custom .less files in the configuration
local-theme.js under the dev/tools/grunt/configs
_extend.less
Error message i got when i watch the files using grunt:watch command