title: getting file not found error in ios
body: <p>Hi I am new to iOS development.
  Here is my problem.</p>
  
  <p>I am given a mac machine with 10.6.X and Xcode for the same.
  I am given a pre-written project for iPhone.
  I wanted to run the project on my iPhone so I had to upgrade my mac and Xcode to 10.7.x and the xcode for the same. I had to do this as my iPhone was running on iOS 5.1.
  So my problem is that before upgrading the project was getting compiled and running properly on simulator but now after upgrade I am getting the following error</p>
  
  <pre><code> /usr/include/objc/objc-class.h file not found
  </code></pre>
  
  <p>I googled a lot, but all the search if pointing to the same link as given in <a href="https://stackoverflow.com/questions/6344131/error-usr-include-objc-objc-class-h-no-such-file-or-directory">this link</a></p>
  
  <p>This link did not work for me as when I try to change the import statement it leads to more 5 to 6 errors.</p>