node_modules/less/test/less-bom/errors/mixed-mixin-definition-args-1.txt

SyntaxError: Cannot mix ; and , as delimiter types in {path}mixed-mixin-definition-args-1.less on line 5, column 30:
4 .mixin-test {
5     .mixin(@a: 5; @b: 6, @c: 7);
6 }