Strict warning: Declaration of flag_node::type_access_multiple() should be compatible with that of flag_flag::type_access_multip

Error:

Strict warning: Declaration of flag_node::type_access_multiple() should be compatible with that of flag_flag::type_access_multiple() in include_once() (line 22 of /mnt/www/html/bryanhirschdev/docroot/profiles/drupalladder/modules/contrib/flag/flag.module).

This is a bug in Flag that has been fixed: #1475040-15: Declaration of flag_node::type_access_multiple() should be compatible with that of flag_flag::type_access_multiple(). The patch needs to be applied and tested in the context of the Ladder.