dded by <a href="dart-async/SynchronousStreamController/add.html">add</a>, <a href="dart-async/SynchronousStreamController/addError.html">addError</a> or <a href="dart-async/SynchronousStreamController/close.html">close</a>.</p>
    </section>
    
    <section class="summary source-code" id="source">
      <h2><span>Implementation</span></h2>
      <pre class="language-dart"><code class="language-dart">void addError(Object error, [StackTrace stackTrace]);</code></pre>
    </section>

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