Steps to Reproduce

Created a new application, edited pubspec.yaml and added a single line:
firebase_auth:
Then I ran :
flutter packages get
and
flutter run

Logs

Running 'flutter packages get' in test_plugins... 0.4s
Launching lib/main.dart on iPhone 6 in debug mode...
Running pod install...
Error running pod install: Exit code 1 from: pod install
Error launching application on iPhone 6.

Flutter Doctor

Running 'flutter packages get' in test_plugins... 0.4s
Launching lib/main.dart on iPhone 6 in debug mode...
Running pod install...
Error running pod install: Exit code 1 from: pod install
Error launching application on iPhone 6.
➜ test_plugins flutter doctor

[✓] Flutter (on Mac OS X 10.12 16A323, channel master)
• Flutter at /Users/arash/source/flutter
• Framework revision fc1b5c9 (3 days ago), 2017-05-10 07:45:16 -0700
• Engine revision cbbf956
• Tools Dart version 1.23.0-dev.11.11

[✓] Android toolchain - develop for Android devices (Android SDK 25.0.3)
• Android SDK at /Users/arash/Library/Android/sdk
• Platform android-25, build-tools 25.0.3
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version: OpenJDK Runtime Environment (build 1.8.0_112-release-b06)

[✓] iOS toolchain - develop for iOS devices (Xcode 8.3.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 8.3.2, Build version 8E2002
• ios-deploy 1.9.1
• CocoaPods version 1.2.1

[✓] Android Studio (version 2.3)
• Android Studio at /Applications/Android Studio.app/Contents
• Gradle version 3.2
• Java version: OpenJDK Runtime Environment (build 1.8.0_112-release-b06)

[✓] IntelliJ IDEA Ultimate Edition (version 2017.1.2)
• Dart plugin version 171.4424
• Flutter plugin version 13.1

[✓] Connected devices
• iPhone 6 • 369236F5-B245-44E5-A43B-60D6DAAC09DB • ios • iOS 10.3 (simulator)

For more information about diagnosing and reporting Flutter bugs, please see https://flutter.io/bug-reports/.