@import (css) FAILS

[adstavrou]

when I use this: @import (css) "http://fonts.googleapis.com/css?family=Open+Sans+Condensed:700,300|Open+Sans:400,700&subset=latin,greek";

it doesn't compile [FAILED] Compilation failed: Object reference not set to an instance of an object. at dotless.Core.Parser.Parsers.Directive(Parser parser) at dotless.Core.Parser.Parsers.Primary(Parser parser) at dotless.Core.Parser.Parser.Parse(String input, String fileName) at dotless.Core.LessEngine.TransformToCss(String source, String fileName) at dotless.Core.ParameterDecorator.TransformToCss(String source, String fileName) at dotless.Compiler.FixImportPathDecorator.TransformToCss(String source, String fileName) at dotless.Compiler.Program.CompileImpl(ILessEngine engine, String inputFilePath, String outputFilePath) [Finished in 0.8s]

but when I use this: @import "http://fonts.googleapis.com/css?family=Open+Sans+Condensed:700,300|Open+Sans:400,700&subset=latin,greek";

with out (css) It is OK, but I have errors with FF