title: E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
body: <p>I have installed docker on windows 10 pro. I am facing an issue while running the following command in git-bash. </p>
  
  <p>docker-compose up -d --build</p>
  
  <p>and got following error. </p>
  
  <pre><code>E: gnupg, gnupg2 and gnupg1 do not seem to be installed, but one of them is required for this operation
  (23) Failed writing body
  Error executing command, exiting
  ERROR: Service 'web' failed to build: The command '/bin/sh -c curl -sL https://deb.nodesource.com/setup_8.x | bash' returned a non-zero code: 1
  </code></pre>