When i create a less file with .less extension, WebEssentials not show less syntax(intellisence, colored syntax) And not appear preview page, ever not known less files!
also all of less options in WebEssentials settings is enabled.
what is problem?
SOLUTION: My Problem Not Solved by Installing Asp.Net Web Tools 2012.2.
I Solved Problem By Installing Web Developer Tools 2012.2 from => http://go.microsoft.com/fwlink/?LinkID=282228