I am trying to improve a build script that uses less to build some CSS and I am getting this. I didn't write this less, but my google-fu has been unable to figure out what is going on here and how to fix it
ParseError: Missing closing ')' in /Users/zkessin/Documents/Voalte/voalte-one/webvadmin/src/less/bootstrap/mixins.less on line 536, column 9:
535 .spanX (@index) when (@index > 0) {
536 (~".span@{index}") { .span(@index); }
537 .spanX(@index - 1);
My only guess is that this was written with an old version of less and I am using the current version