title: Multiple root tags error
body: <p>I'm new to Android development and programming in general. I tried to write some layout code but I'm getting</p>
  
  <pre><code>Multiple root tags error
  </code></pre>
  
  <p>Anyone who can help me?</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  
  &lt;LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical"&gt;
  
  &lt;TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="@string/hello" /&gt;
  
  &lt;TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="This is my first android app!" /&gt;
  
  &lt;Button
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="Button!" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  
  
  <pre><code>&lt;LinearLayout
      xmlns:android="http://schemas.android.com/apk/res/android"
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:orientation="vertical" &gt;
  
      &lt;TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="Hello!" /&gt;
  
      &lt;TextView
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="This is my first android app!" /&gt;
  
      &lt;Button
      android:layout_width="fill_parent"
      android:layout_height="wrap_content"
      android:text="Button!" /&gt;
  
  &lt;/LinearLayout&gt;
  </code></pre>
  
  <p>I was able to fix it this way, but it doesn't work if in the first TextView text I put "@string/Hello" can someone tell me why?</p>