title: volume already exists but was not created by Docker Compose
body: <p>This is what i get after i use ddev start on new or any other projects.
  I clear all docker images, volumes, etc... and problem repeats again...</p>
  <p>Does anybody has the same problem, does it have any connection with versions:</p>
  <ul>
  <li>Docker version 20.10.11</li>
  <li>Docker Compose version 2.2.0</li>
  <li>ddev version v1.18.0</li>
  </ul>
  <pre><code>Starting lmp... 
  Pushed mkcert rootca certs to ddev-global-cache/mkcert 
  Running   Command=ip address show dev docker0
  volume &quot;lmp-mariadb&quot; already exists but was not created by Docker Compose. Use `external: true` to use an existing volume 
  Failed to start lmp: ComposeCmd failed to run 'COMPOSE_PROJECT_NAME=ddev-lmp docker-compose -f /home/loganmm/www/ddev/lmp/.ddev/.ddev-docker-compose-full.yaml up --build -d', action='[up --build -d]', err='exit status 1', stdout='Sending build context to Docker daemon     489B
  Step 1/6 : ARG BASE_IMAGE
  Step 2/6 : FROM $BASE_IMAGE
   ---&gt; 87d5f9bd7e6e
  Step 3/6 : ARG username
   ---&gt; Using cache
   ---&gt; f60cc0e22e2e
  Step 4/6 : ARG uid
   ---&gt; Using cache
   ---&gt; 01e2924ff925
  Step 5/6 : ARG gid
   ---&gt; Using cache
   ---&gt; f76f3c567045
  Step 6/6 : RUN (groupadd --gid $gid &quot;$username&quot; || groupadd &quot;$username&quot; || true) &amp;&amp; (useradd  -l -m -s &quot;/bin/bash&quot; --gid &quot;$username&quot; --comment '' --uid $uid &quot;$username&quot; || useradd  -l -m -s &quot;/bin/bash&quot; --gid &quot;$username&quot; --comment '' &quot;$username&quot; || useradd  -l -m -s &quot;/bin/bash&quot; --gid &quot;$gid&quot; --comment '' &quot;$username&quot;)
   ---&gt; Using cache
   ---&gt; 74726db594e2
  Successfully built 74726db594e2
  Successfully tagged drud/ddev-dbserver-mariadb-10.3:v1.18.0-lmp-built
  Sending build context to Docker daemon     448B
  Step 1/6 : ARG BASE_IMAGE
  Step 2/6 : FROM $BASE_IMAGE
   ---&gt; 1e45807db7e2
  Step 3/6 : ARG username
   ---&gt; Using cache
   ---&gt; 99d798f1aa8c
  Step 4/6 : ARG uid
   ---&gt; Using cache
   ---&gt; 30f01bb39027
  Step 5/6 : ARG gid
   ---&gt; Using cache
   ---&gt; db8269893144
  Step 6/6 : RUN (groupadd --gid $gid &quot;$username&quot; || groupadd &quot;$username&quot; || true) &amp;&amp; (useradd  -l -m -s &quot;/bin/bash&quot; --gid &quot;$username&quot; --comment '' --uid $uid &quot;$username&quot; || useradd  -l -m -s &quot;/bin/bash&quot; --gid &quot;$username&quot; --comment '' &quot;$username&quot; || useradd  -l -m -s &quot;/bin/bash&quot; --gid &quot;$gid&quot; --comment '' &quot;$username&quot;)
   ---&gt; Using cache
   ---&gt; 059097a5008c
  Successfully built 059097a5008c
  Successfully tagged drud/ddev-webserver:v1.18.0-lmp-built
  ', stderr='volume &quot;lmp-mariadb&quot; already exists but was not created by Docker Compose. Use `external: true` to use an existing volume' 
  </code></pre>