><a href="../reference/reply.html"><span class="ci">Reply</span></a></code> value
      implicitly refer to the current stream position. Since the <code class="fsharp"><a
      href="../reference/errormessage.html#members.ErrorMessage"><span class="ci">ErrorMessage</span></a></code> values stored in the <code
      class="fsharp"><a href="../reference/errormessagelist.html"><span class="ci">ErrorMessageList</span></a></code> do not themselves contain an
      error position, they can only be interpreted tog