title: why is it showing "error: not well-formed (invalid token)." in android studio
body: <p>I recently downloaded android studio. there i saw an error was showing
  &quot;error: not well-formed (invalid token).&quot; i don't understand why, but here is my code:</p>
  <pre><code>&lt;?xml version=&quot;1.0&quot; encoding=&quot;utf-8&quot;?&gt;
  &lt;RelativeLayout xmlns:android=&quot;http://schemas.android.com/apk/res/android&quot;
      xmlns:app=&quot;http://schemas.android.com/apk/res-auto&quot;
      android:layout_width=&quot;match_parent&quot;
      android:layout_height=&quot;match_parent&quot;
      android:background=&quot;@drawable/car&quot;
      app:layout_behavior=&quot;@string/appbar_scrolling_view_behavior&quot;&gt;
  
  &lt;/RelativeLayout&gt;  
  </code></pre>
  <p>i am tring since 2-3 hours and any help will be appreciated.
  pls help what should i do now???</p>