Cloud-book/node_modules/less/test/less-bom/errors/mixin-not-visible-in-scope-1.txt

NameError: .a is undefined in {path}mixin-not-visible-in-scope-1.less on line 7, column 13:
6     & {
7         .b {.a} // was Err. before 1.6.2
8     }