e">
  <h2><span>Implementation</span></h2>
  <pre class="language-dart"><code class="language-dart">String? get launchError {
  if (io.Platform.isIOS) {
    return _launchError;
  }
  throw UnsupportedError(
      &#39;The attribute launchError is not available on Android&#39;);
}</code></pre>
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