Error when using Twitter Bootstrap .span12 in a .less file

less, twitter-bootstrap

Solution

According to the documentation, you have to use the mixin `makeColumn`. See the relevant section for further information. You might need to search for `span`.

Problem

i want to use default bootstrap classes like `.span12` and `.row` in my own `style.less` but it shows error `.row is undefined` ``` .my-class{ .span12; // returns error undefined // or .span(12); } ``` is there any way to use them in a `.less` file? for example `.span(12)`.

Original source