I have installed a fork of roots, shoestrap, which uses a lot of the roots goodies including grunt to compile less. Now after I added the theme, installed grunt and ran npm install and activated theme I tried to add a bootswatch theme by adding the variables.less and bootswatch.less and added the necessary changes to bootstrap.less. With these changes and without them (bare install) I keep on getting
Running "less:dist" (less) task
Verifying property less.dist exists in config...OK
Files: assets/less/app.less -> assets/css/main.min.css
Options: compress, sourceMap, sourceMapFilename="assets/css/main.min.css.map", sourceMapRootpath="/wp-content/themes/shoestrap/"
Reading assets/less/app.less...OK
>> NameError: variable @gutter is undefined in assets/less/app.less on line 5, column 13:
>> 4 .gallery-row {
>> 5 padding: (@gutter / 2) 0;
>> 6 }
Warning: Error compiling assets/less/app.less Use --force to continue.
Aborted due to warnings.
Any ideas what I can do to fix this. It is not a BOM issue, I tried that, but what the issue is then I do not know. Perhaps the variables are not loaded somehow?