Recursive variable definition for @blue-dark in all.less on line 18, column 22
16| 		min-width: 110px; // Show the truck even on smaller screens
17| 		i {
18| 			background-color: @blue-dark;
19| 		}
20| 	}
21| }
/var/www/html/vendor/oyejorge/less.php/lib/Less/Tree/Variable.php