Uncaught Less\Exception\Less_Exception_Parser: Expected ')' got ':'

[ghost]

Uncaught Less\Exception\Less_Exception_Parser: Expected ')' got ':' in image.less on line 7, column 16 05| 06| 07| .img-responsive(@display: block) { 08| display: @display; 09| max-width: 100%; 10| height: auto;

And that's the .less code (bootstrap.less 3.4.0) from bootstrap/mixins/images.less:
.img-responsive(@display: block) { display: @display; max-width: 100%; height: auto; }

I had leafo's less compiler. I installed bootstrap.less version 3.4.0 and it crashed so I installed oyejorge's less compiler.
There is any less compiler (based on php) which is 100% stable?

Thanks in advance.