html">polymer_app_layout.behaviors</a></li>
            <li><a href="polymer_app_layout.behaviors/MediaElement-class.html">MediaElement</a></li>
            <li class="self-crumb">keyErrorEvent</li>
        </ol>
        <div class="title-description">
            <h1 class="title">
                <div class="kind">constant</div> keyErrorEvent
            </h1>
            <!-- p class="subtitle">
                Static factory designed to expose <code class="prettyprint lang-dart">keyerror</code> events t