title: How To Solve Cocapods could not find the compatible Versions
body: <p>I  am using Firebase latest version in my unity 2018. While build  my project unity says</p>
  
  <pre><code>iOS framework addition failed due to a CocaPods installation 
  failure.This will will likely result in an non-functional xCode 
  Project.
  </code></pre>
  
  <p>This is my Pod file.</p>
  
  <pre><code>source 'https://github.com/CocoaPods/Specs.git'
  platform :ios, '9.0'
  
  target 'Unity-iPhone' do
  pod 'Firebase/Analytics', '5.4.0'
  pod 'Firebase/Auth', '5.12.0'
  pod 'Firebase/Core', '5.12.0'
  pod 'Firebase/Database', '5.12.0'
  pod 'Firebase/Messaging', '5.9.0'
  pod 'GoogleAppMeasurement', '5.3.0'
  end
  </code></pre>
  
  <p>When i try  to install pod  using</p>
  
  <p>pod install . </p>
  
  <p>It says</p>
  
  <pre><code>[!] CocoaPods could not find compatible versions for pod 
  "Firebase/Auth":
  In Podfile:
  Firebase/Auth (= 5.12.0)
  
  Specs satisfying the `Firebase/Auth (= 5.12.0)` dependency were 
  found, but they required a higher minimum deployment target.
  </code></pre>
  
  <p>I have  update latest version of cocapods also...</p>
  
  <p>But  the workspace is not created.. </p>
  
  <p>How to  solve the problem...</p>
  
  <p>thanks in advance.</p>