Fatal error: Cannot redeclare wp_print_auto_sizes_contain_css_fix() (previously declared in D:\Web_Root\rc1\wp-includes\deprecated.php:6479) in D:\Web_Root\rc1\wp-includes\media.php on line 2079

Fatal error: Uncaught Error: Call to a member function set() on null in D:\Web_Root\rc1\wp-includes\l10n.php:857 Stack trace: #0 D:\Web_Root\rc1\wp-includes\l10n.php(960): load_textdomain('default', 'D:\\Web_Root\\rc1...', 'fr_CA') #1 D:\Web_Root\rc1\wp-includes\class-wp-fatal-error-handler.php(49): load_default_textdomain() #2 [internal function]: WP_Fatal_Error_Handler->handle() #3 {main} thrown in D:\Web_Root\rc1\wp-includes\l10n.php on line 857