title: My design view on Android Studio is blank. It doesn't change. I have tried syncing with gradle build too. What to do?
body: <p><img src="https://i.stack.imgur.com/06YsN.png" alt="enter image description here"></p>
  
  <p>XML CODE: </p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  xmlns:app="http://schemas.android.com/apk/res-auto"
  xmlns:tools="http://schemas.android.com/tools"
  android:layout_width="match_parent"
  android:layout_height="match_parent"
  tools:context=".MainActivity"&gt;
  
  &lt;TextView
      android:layout_width="34dp"
      android:layout_height="53dp"
      android:text="Hello World!"
      android:textAppearance="@style/TextAppearance.AppCompat"
      android:visibility="visible" /&gt;
  
  &lt;/LinearLayout
  </code></pre>
  
  <p>Need help asap.What to do??</p>