I have a fresh ( few days old ) and fully up to date install of VS2103 and Web Essentials 2013.
When I compile a simple less file of my own in "~/Content/bootstrap/less/site.less" it works fine. I Can see the .css files.
But if I try to either import bootstrap in it or compile bootstrap.less itself I get:
Compilation Error occurred (see error list to navigate to the error location):
Error found at line 199, column 2:
Question: Is bootstrap V3.3.1 ( the current one with nuget twitter.bootstrap.less ) using some newest fancy less features that web essentials cannot handle ?
Note: Bootstrap.less file does not even have 199 lines and is just a big bunch of import statements. But I cannot get a decent output pointing me to the actually failing file, and hence to the actually failing statement.