title: Xcode #import not finding .h file
body: <p>I'm trying to import a .h file from an old xcode project into my current one. The file location is the same as the other files in the project (I moved it there), but after using #import in my program body file, when I try to run the program I get the following fail:</p>
  
  <p>"_OBJC_CLASS_$_Fraction", referenced from:</p>
  
  <p>objc-class-ref-to-Fraction in 9.1main.o</p>
  
  <p>ld: symbol(s) not found
  collect2: ld returned 1 exit status</p>
  
  <p>Does anyone know how to fix this? Thanks!</p>