title: LibGDX - Missing LabelStyle font error
body: <p>I have a folder named UI and inside it, it contains a button.pack and a button.png (I created this with the GDX texture packer). Here is the line of code for the .pack.</p>
  
  <pre><code>    atlas = new TextureAtlas(Gdx.files.internal("ui/button.pack"));
      skin = new Skin(atlas);
  </code></pre>
  
  <p>But when I run the application it gives me this error:</p>
  
  <pre><code>Exception in thread "LWJGL Application" java.lang.IllegalArgumentException: Missing LabelStyle font.
  </code></pre>
  
  <p>Am I doing something wrong? What is the excact problem?</p>