error: unable to resolve comptime value

I am new to zig so I'm probably just using the library wrong but I cant figure this out so any help is appreciated. I am making a custom logger with colour. my code: ``` 14 pub fn Print(self: Logger, s: []const u8) !void { 15 comptime var cham = Chameleon.init(.Auto); 16 if (self.level == LogLevel.Info or self.level == LogLevel.All) { 17 std.debug.print(cham.white().fmt(s), .{}); 18 } 19 } ``` the error: ``` src\Logger.zig:17:46: error: unable to resolve comptime value src\Logger.zig:17:46: note: argument to function being called at comptime must be comptime-known ```