Fatal error: Cannot redeclare wp_check_password() (previously declared in C:\Users\johh-smith\Documents\Websites\test.dev\wp-includes\pluggable.php:2087) in C:\Users\john-smith\Documents\Websites\test.dev\wp-content\plugins\wp-password-bcrypt\wp-password-bcrypt.php on line 44

Just tried activating it on a local dev site using Desktop Server.