title: run openAttachment id: 5E14F03C543953911C985450FC3B120DB262DCA60961B02D8B8311D039D4FDE2
body: <p>Trying to download an attachment using openAttachment command and its throwing illegalArgumentExcpetion </p>
  
  <pre><code>Wed Sep 19 23:32:29 IST 2018&gt;&gt;&gt; run openAttachment id: 5E14F03C543953911C985450FC3B120DB262DCA60961B02D8B8311D039D4FDE2
  RPC failed: java.lang.IllegalArgumentException: argument type mismatch
  </code></pre>