mysql error : ERROR 1018 (HY000): Can't read dir of '.' (errno: 13)

Question

when i try to view the databases in mysql i get this error:

ERROR 1018 (HY000): Can\'t read dir of \'.\' (errno: 13)

And that stops my app

Answer 1

osx high sierra use the following command solves the issue:

chown -R mysql:mysql /usr/local/mysql