title: Undefined symbol: _OBJC_CLASS_$_FIRAnalytics
body: <p>I am trying to Call Firebase Analytics in my iOS app ,i am getting error while compiling project .</p>
  
  <p>I have created one framework and from that framework calling firebase analytics but I don’t understand getting below error.  </p>
  
  <pre><code>Undefined symbols for architecture x86_64:
    "_OBJC_CLASS_$_FIRAnalytics", referenced from:
        objc-class-ref in ViewController.o
  ld: symbol(s) not found for architecture x86_64
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  
  
  Showing Recent Errors Only
  :-1: Undefined symbol: _OBJC_CLASS_$_FIRAnalytics
  </code></pre>
  
  <p>Below is my app structure </p>
  
  <ul>
  <li>iOS App
  
  <ul>
  <li>MyCustom Framework
  
  <ul>
  <li>Viewcontroller</li>
  </ul></li>
  </ul></li>
  </ul>