title: "Cannot find interface declaration for NSObject"?
body: <p>So I've done some research into this issue, but I haven't found anything similar just yet...</p>
  
  <p>So I'm coding a game in Obj-C using Xcode and Sparrow Framework. I've been working on the simulator up until this point, and it's all been going fine. But when I switch to running it on my device, I get all sorts of errors for things that should be standard, e.g. "Cannot find interface declaration for NSObject", "Unknown type name 'NSMutableArray'" etc. I've already got #import  in each class, so you would think that it shouldn't happen, right? I get the feeling that it's just a line or two that needs changing somewhere - but I haven't got a clue what or where.</p>
  
  <p>If anyone has any advice, it would be very much appreciated. :)</p>
  
  <p>EDIT: Here's a screenshot of one of the .h files that give errors - it seems to only be in some of the .h files that I've created. <a href="http://i.imgur.com/EuQh4.png">http://i.imgur.com/EuQh4.png</a></p>