title: Unable to find specification for '$PODNAME'
body: <p>Below is my podfile</p>
  
  <pre><code>platform :ios, '11.0'
  
  source 'https://github.com/CocoaPods/Specs.git'
  
  project '/Users/sylvanm/Desktop/Programming/Xcode/Practice/First Apps on   phone/iMango/iMango.xcodeproj'
  
  target 'iMango' do
     pod 'iMango'
  end
  </code></pre>
  
  <p>It says <code>[!] Unable to find a specification for iMango</code>
  (there are the '' marks around iMango but idk how to format that.</p>
  
  <p>Please help!</p>