title: MicroStack does not start: Command 'snapctl start microstack.nginx' returned non-zero exit status 1
body: <p>I am trying to start the MicroStack on Ubuntu 18.04 and receiving the following error:</p>
  <pre><code>sudo microstack.init --auto
  2020-05-07 16:23:52,073 - microstack_init - INFO - Configuring networking ...
  2020-05-07 16:23:52,955 - microstack_init - INFO - Setting up ipv4 forwarding...
  2020-05-07 16:23:53,676 - microstack_init - INFO - Opening horizon dashboard up to *
  2020-05-07 16:23:54,336 - microstack_init - INFO - Waiting for RabbitMQ to start ...
  Waiting for 10.20.20.1:5672
  2020-05-07 16:23:54,340 - microstack_init - INFO - RabbitMQ started!
  2020-05-07 16:23:54,340 - microstack_init - INFO - Configuring RabbitMQ ...
  2020-05-07 16:23:54,919 - microstack_init - INFO - RabbitMQ Configured!
  2020-05-07 16:23:55,016 - microstack_init - INFO - Waiting for MySQL server to start ...
  Waiting for 10.20.20.1:3306
  2020-05-07 16:23:55,038 - microstack_init - INFO - Mysql server started! Creating databases ...
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'neutron'; database exists&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1287, &quot;Using GRANT statement to modify existing user's properties other than privileges is deprecated and will be removed in future release. Use ALTER USER statement for this operation.&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'nova'; database exists&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'nova_api'; database exists&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'nova_cell0'; database exists&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'cinder'; database exists&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'glance'; database exists&quot;)
    result = self._query(query)
  /snap/microstack/196/lib/python3.6/site-packages/pymysql/cursors.py:170: Warning: (1007, &quot;Can't create database 'keystone'; database exists&quot;)
    result = self._query(query)
  Traceback (most recent call last):
    File &quot;/snap/microstack/196/bin/microstack_init&quot;, line 11, in &lt;module&gt;
      load_entry_point('microstack-init==0.0.1', 'console_scripts', 'microstack_init')()
    File &quot;/snap/microstack/196/lib/python3.6/site-packages/init/main.py&quot;, line 122, in main
      question.ask()
    File &quot;/snap/microstack/196/lib/python3.6/site-packages/init/questions/question.py&quot;, line 210, in ask
      self.yes(awr)
    File &quot;/snap/microstack/196/lib/python3.6/site-packages/init/questions/__init__.py&quot;, line 355, in yes
      check('snapctl', 'start', 'microstack.nginx')
    File &quot;/snap/microstack/196/lib/python3.6/site-packages/init/shell.py&quot;, line 68, in check
      raise subprocess.CalledProcessError(proc.returncode, &quot; &quot;.join(args))
  subprocess.CalledProcessError: Command 'snapctl start microstack.nginx' returned non-zero exit status 1.
  </code></pre>