getHierarchyViewer() throws NoClassDefFoundError
<p>I am trying to get android HierarchyViewer via the IChimpDevice, my code looks like this</p>

<pre><code>public HierarchyViewer GetHierarchyViewer()
{
    return mDevice.getHierarchyViewer();
}
</code></pre>

<p>I have initialized the mDevice this way:</p>

<pre><code>mDevice = mChimpchat.waitForConnection(TIMEOUT, ".*");
if ( mDevice == null ) {
    throw new RuntimeException("Couldn't connect.");
}
mDevice.wake();
</code></pre>

<p>And when I call <code>getHierarchyViewer()</code>, I get this exception:</p>

<pre><code>Exception in thread "main" java.lang.NoClassDefFoundError: com/android/hierarchyviewerlib/device/DeviceBridge
    at com.android.chimpchat.hierarchyviewer.HierarchyViewer.setupViewServer(HierarchyViewer.java:46)
    at com.android.chimpchat.hierarchyviewer.HierarchyViewer.&lt;init&gt;(HierarchyViewer.java:42)
    at com.android.chimpchat.adb.AdbChimpDevice.getHierarchyViewer(AdbChimpDevice.java:96)
    at ChimpChatWrapper.GetHierarchyViewer(ChimpChatWrapper.java:44)
    at ViewService.main(ViewService.java:17)
</code></pre>

<p>Can someone help explain why the DeviceBridge class may not be found?</p>
