title: Header file (FirebaseCore/FirebaseCore.h) not found, despite importing Firebase.framework
body: <p>I am trying to manually import and use the Firebase framework in my iOS application. I am starting off with the basic bare minimum Analytics framework (then I'll add the rest of the frameworks).</p>
  
  <p>I followed this <a href="http://www.mokacoding.com/blog/setting-up-firebase-without-cocoapods/" rel="noreferrer">tutorial</a> in order to manually import the Google Firebase framework into my Xcode project. The problem is that I am still getting the following error:</p>
  
  <blockquote>
    <p>'FirebaseCore/FirebaseCore.h' file not found</p>
  </blockquote>
  
  <p>I have imported the frameworks, imported the overall header file and have made sure that the files where actually copied to the project directory folder.</p>
  
  <p>I have set the -ObjC linker flag too.</p>
  
  <p><a href="https://i.stack.imgur.com/vypZ6.png" rel="noreferrer"><img src="https://i.stack.imgur.com/vypZ6.png" alt="enter image description here"></a></p>
  
  <p>Has anyone else managed to manually import the Google Firebase framework into their Xcode project? What am I missing?</p>
  
  <p>Note: I am not interested in using CocoaPods at all, I just want the simple old fashioned approach.</p>