title: The post-install step did not complete successfully MySQL Mac OS Sierra
body: <pre><code>[(pyEnv) Anants-MacBook-Pro:litibackend anantchandra$ brew postinstall mysql
  ==&gt; Postinstalling mysql
  ==&gt; /usr/local/Cellar/mysql/8.0.11/bin/mysqld --initialize-insecure --user=anantchandra --basedir=/usr/local/Cellar/mysql/8.0.11 --datadir=/usr/local/var/mysql --tmpdir=/tmp
  Last 15 lines from /Users/anantchandra/Library/Logs/Homebrew/mysql/post_install.01.mysqld:
  2018-06-15 04:41:04 -0700
  
  /usr/local/Cellar/mysql/8.0.11/bin/mysqld
  --initialize-insecure
  --user=anantchandra
  --basedir=/usr/local/Cellar/mysql/8.0.11
  --datadir=/usr/local/var/mysql
  --tmpdir=/tmp
  
  2018-06-15T11:41:04.901191Z 0 [System] [MY-013169] [Server] /usr/local/Cellar/mysql/8.0.11/bin/mysqld (mysqld 8.0.11) initializing of server in progress as process 37841
  2018-06-15T11:41:04.903504Z 0 [ERROR] [MY-010457] [Server] --initialize specified but the data directory has files in it. Aborting.
  2018-06-15T11:41:04.903537Z 0 [ERROR] [MY-010119] [Server] Aborting
  2018-06-15T11:41:04.903701Z 0 [System] [MY-010910] [Server] /usr/local/Cellar/mysql/8.0.11/bin/mysqld: Shutdown complete (mysqld 8.0.11)  Homebrew.
  
  Warning: The post-install step did not complete successfully
  You can try again using `brew postinstall mysql`
  </code></pre>