title: Flutter IOS product flavors not running
body: <p>I have implemented product flavors in my flutter app and i have add three different google-services.plist files. Now when I try to run my ios app it throws this error.
  I followed this medium post <a href="https://medium.com/@matt.goodson.business/separating-build-environment-configurations-in-flutter-with-firebase-doing-it-the-right-way-c72c3ad3621f" rel="noreferrer">link</a></p>
  <p>Xcode's output:</p>
  <pre><code>error: Multiple commands produce
  '/Users/abc/MarkiTech/pulscare_mobile/build/ios/Debug-development-iphonesimulator/Runner.app/GoogleService-Info.plist':
  1) Target 'Runner' (project 'Runner') has copy command from '/Users/abc/Downloads/development/GoogleService-Info.plist' to
  '/Users/abc/MarkiTech/pulscare_mobile/build/ios/Debug-development-iphonesimulator/Runner.app/GoogleService-Info.plist'
  2) Target 'Runner' (project 'Runner') has copy command from '/Users/abc/Downloads/master/GoogleService-Info.plist' to
  '/Users/abc/MarkiTech/pulscare_mobile/build/ios/Debug-development-iphonesimulator/Runner.app/GoogleService-Info.plist'
  3) Target 'Runner' (project 'Runner') has copy command from '/Users/abc/Downloads/stage/GoogleService-Info.plist' to
  '/Users/abc/MarkiTech/pulscare_mobile/build/ios/Debug-development-iphonesimulator/Runner.app/GoogleService-Info.plist'
  </code></pre>