title: aws-vault credentials missing
body: <p>I am trying to get aws-vault working on my new computer. </p>
  
  <p>I have a config file that looks like:</p>
  
  <pre><code>[profile default]
  region=eu-west-1
  output=json
  mfa_serial = %%%
  </code></pre>
  
  <p>And a credentials file </p>
  
  <pre><code>[default]
  aws_access_key_id = %%%
  aws_secret_access_key = %%%
  </code></pre>
  
  <p>but when I run </p>
  
  <pre><code>aws-vault exec default
  </code></pre>
  
  <p>I get the error </p>
  
  <pre><code>aws-vault: error: exec: Error getting temporary credentials: profile default: credentials missing
  </code></pre>
  
  <p>any ideas of how to fix this problem?</p>