Google Cardboard Demo app giving an error, error CS0117: `UnityEditor.PlayerSettings' does not contain a definition for `target IOS Graphics'

Im trying to build Google cardboard Demo application on to Android Device(Samsung Gs3), but Im facing a problem. I get an error

“error CS0117: `UnityEditor.PlayerSettings’ does not contain a definition for ‘target IOS Graphics’” in CardboardEditor.cs.
Can someone suggest me what mI doing wrong. Help me solve the bug. Im using

Unity 4.6.2

Cardboard SDK for Unity v0.5

Target Platform : Android

You can comment out the line causing the compile error, or upgrade to a version of Unity newer than 4.6.2 (the code in question compiles on 4.6.3 or newer).