title: The Podfile does not contain any dependencies
body: <p>Cocoapod 1.1.1</p>
  
  <p>Xcode 8.1 beta</p>
  
  <p>Want to add Firebase/Core pod</p>
  
  <p>Podfile</p>
  
  <pre><code># Uncomment the next line to define a global platform for your project
  platform :ios, '9.0'
  
  target 'AddPodAdMob' do
  source 'https://github.com/CocoaPods/Specs.git' do
  use_frameworks!
  pod 'Firebase/Core'
  end
  end
  </code></pre>
  
  <p>Without adding source it was not creating <code>.xcworkspace</code> file.</p>
  
  <p>Now showing this after pod install command.</p>
  
  <pre><code>Pod installation complete! There are 0 dependencies from the Podfile and 0 total pods installed.
  
  [!] The Podfile does not contain any dependencies.
  </code></pre>
  
  <p>Any help please...</p>