title: Shopware 6 "You have requested a non-existent service "sales_channel_definition.ProductDefinition" after installing plugin
body: <p>After installing the Channable plugin for Shopware 6 I received the following error.</p>
  <pre><code>Plugin could not be activated due to error message &quot;You have requested a non-existent service &quot;sales_channel_definition.Shopware\Core\Content\Product\ProductDefinition&quot;
  </code></pre>
  <p>I haven't been able to find a solution for this, and Google turns up little.</p>