Unknown Identifier

I have Whizz's ess miner but I can't get it to work. It fails the compile with this message: "Line 218: [Error] (218:4): Unknown identifier 'InAbstractBox' in script C:\Program Files\SCAR 3.06\includes\srl\srl\core\Color.scar". Any clues on what the problem could be?

Try Re-Downloading SRL.

I tried that but I still have the same problem.