--- a/squish.lua	Thu May 27 15:32:25 2010 +0100
+++ b/squish.lua	Sat May 29 21:44:23 2010 +0100
@@ -231,7 +231,7 @@
 				modulename, modulename, "@"..path));
 		end
 	else
-		print_err("Couldn't pack module '"..modulename.."': "..err);
+		print_err("Couldn't pack module '"..modulename.."': "..(err or "unknown error... path to module file correct?"));
 		os.exit(1);
 	end
 end