Sky Theme Error after enable and set as default

I have enabled the "Sky Theme" and Set as default. its ends with error below.

Warning: Invalid argument supplied for foreach() in D:\xampp\htdocs\d7\includes\module.inc on line 995

Fatal error: Call to undefined function get_color_scheme_name() in D:\xampp\htdocs\d7\sites\all\themes\sky\template.php on line 13