// MySQL often returns with the 1396 error code when you try to create a user
// 1396 (HY000): Operation CREATE USER failed for [user]
// To avoid the error we have to assume we already have that user and follow the following order:

drop user [user]@localhost;
FLUSH PRIVILEGES;
CREATE USER '[user]'@'localhost' IDENTIFIED BY 'M@RRyXm@S1981';
GRANT ALL PRIVILEGES ON *.* TO '[user]'@'localhost' WITH GRANT OPTION;