title: Unity - iOS: WARNING: Shader Unsupported: 'Hidden/BlitToDepth'
body: <p>I'm making a 2D game using Unity, i exported the game to Android and it runs smoothly with no problems, i exported the same game to Xcode and then i installed the game on my iPhone, it doesn't crash but the log gives me those warning:</p>
  
  <pre><code>GfxDevice: creating device client; threaded=1
  Initializing Metal device caps: Apple A11 GPU
  Initialize engine version: 2017.3.1f1 (fc1d3344e6ea)
  WARNING: Shader Unsupported: 'Hidden/BlitToDepth' - Pass '' has no 
  vertex shader
  WARNING: Shader Unsupported: 'Hidden/BlitToDepth' - Setting to default 
  shader.
  WARNING: Shader Unsupported: 'Hidden/BlitToDepth_MSAA' - Pass '' has no 
  vertex shader
  WARNING: Shader Unsupported: 'Hidden/BlitToDepth_MSAA' - Setting to 
  default shader.
  Setting up 1 worker threads for Enlighten.
  .....
  ...
  </code></pre>
  
  <p>And the movement in the game is a little bit laggy. (but on Android devices the movement is smooth)</p>
  
  <p>I searched all over the internet and i tried every solution there is. Nothing seems to work.</p>
  
  <p>Any suggestions?</p>
  
  <p><strong>EDIT</strong>
  I tried <a href="https://stackoverflow.com/questions/40283628/unity-application-crashes-on-ios-due-to-shader-not-compiled">this</a> but it didn't work.</p>
  
  <p><strong>EDIT2</strong> 
  Unity <a href="https://issuetracker.unity3d.com/issues/ios-vr-vr-shaders-are-included-in-builds-even-though-vr-support-is-disabled" rel="nofollow noreferrer">says</a> that this is a bug and the problem is resolved, i don't see the solution!.</p>