a</span>
    }
  )
)</pre></body></html></div>
</div>
<div id="cannot-add-bindings-to-a-locked-environment" class="section level2">
<h2 class="hasAnchor">
<a href="#cannot-add-bindings-to-a-locked-environment" class="anchor"></a>“Cannot add bindings to a locked environment”?</h2>
<p>Contextual is build using the <code>R6</code> class system. In <code>R6</code>, you cannot create new attributes to <code>R6</code> objects just by assigning to $ indexed values as you can in S3. More information on <code>R6