title: Upgrading from Umbraco 7.15 to 8 (Detected current version 0.0.0)
body: <p>I am trying to upgrade the underlying Umbraco database from 7.15.8 to 8.</p>
  <p>What I have done is spin up a vanilla Umbraco 8, then pointed it to the 7 DB.</p>
  <p>The issue is that when I go running the upgrade see the following method</p>
  <pre><code>Detected current version 0.0.0 (unknown), which needs to be upgraded to 8.
  </code></pre>
  <p>Once run the upgrade I then get the error</p>
  <p>The database failed to upgrade. ERROR: The database configuration failed with the following message: Could not get current version from web.config Umbraco.Core.ConfigurationStatus appSetting.</p>
  <p>What I have tried setting the value in the web.config, but it doesn't make any difference.</p>
  <pre><code>&lt;add key=&quot;umbracoConfigurationStatus&quot; value=&quot;7.15.8&quot; /&gt;
  </code></pre>