title: The EF Core tools version '3.1.2' is older than that of the runtime '3.1.7'. Update the tools for the latest features and bug fixes
body: <pre><code>PM&gt; update-database
  Build started...
  Build succeeded.
  The EF Core tools version '3.1.2' is older than that of the runtime '3.1.7'. Update the tools for the latest features and bug fixes.
  </code></pre>
  <p>I tried a local update.
  As different projects might use different versions on the same machine.</p>
  <p>If I do this</p>
  <pre><code>$ dotnet tool update dotnet-ef
  </code></pre>
  <p>I get this error
  Cannot find a manifest file.</p>
  <p>This is my version number:</p>
  <pre><code>$ dotnet ef --version
  Entity Framework Core .NET Command-line Tools
  3.1.5
  </code></pre>