title: Scaling in gideros
body: <pre><code>local scaling = Application.CENTER
  application:setScaleMode(scaling)
  </code></pre>
  
  <p>I tried using above code in Gideros but it gives an error that 'bad argument #1 to 'setScaleMode' (string expected, got nil) at setScaleMode, how can I fix this ?Actually, It did not recognise Application.CENTER , though according to Apress Lua game development, It should.</p>