title: Can't Install Cocoapods on macOS Sierra
body: <p>I'm not able to install CocoaPods on my Mac for my project.</p>
  <p>I'm running macOS Sierra 10.12.3 and Xcode 8.2.1 (Swift 3)</p>
  <p>When running sudo gem install cocoapods I got this error :</p>
  <blockquote>
  <p>Fetching: cocoapods-core-1.2.0.gem (100%)</p>
  <p>Successfully installed cocoapods-core-1.2.0</p>
  <p>Fetching: cocoapods-1.2.0.gem (100%)</p>
  <p>ERROR:  While executing gem ... (Errno::EPERM)</p>
  <p>Operation not permitted - /usr/bin/pod</p>
  </blockquote>
  <p>I've try both answers on <a href="https://stackoverflow.com/questions/40263180/cannot-install-cocoapods-on-macos-sierra-10-12-1">this topic</a> but I didn't got any Podfile sadly.</p>
  <p>Can anyone please help me ? :)</p>
  <p>Thanks</p>