title: Command ValidateEmbeddedBinary failed with a nonzero exit code
body: <p>I ran into this error after upgrading <code>xCode</code> to version <code>12.4</code>
  <img src="https://i.stack.imgur.com/KUa7H.jpg" alt="Error output" /></p>
  <p>Build fails with the following message:</p>
  <blockquote>
  <p>&quot;Command ValidateEmbeddedBinary failed with a nonzero exit code&quot;</p>
  </blockquote>
  <p>This error concerns the validation of the extension to the macOS application (in this case, <code>NetworkExtention</code>)</p>