Unable to create user in SQL

Hi,

I’ve been following this tutorial to install Wordpress - https://www.digitalocean.com/community/tutorials/how-to-install-wordpress-with-lamp-on-ubuntu-16-04#step-1-create-a-mysql-database-and-user-for-wordpress

but this command seems to fail: GRANT ALL ON wordpress.* TO ‘wordpressuser’@‘localhost’ IDENTIFIED BY ‘password’;

with this error: ERROR 1819 (HY000): Your password does not satisfy the current policy requirements

I’ve tried a suggestion below with the following commands instead: mysql> CREATE USER ‘wordpressuser’; ERROR 1819 (HY000): Your password does not satisfy the current policy requirements mysql> ALTER USER ‘wordpressuser’@‘localhost’ IDENTIFIED BY ‘password’; ERROR 1396 (HY000): Operation ALTER USER failed for ‘wordpressuser’@‘localhost’

but those failed as well.

Any ideas?