Steps to Reproduce

• Log user with email / pwd mode (user already created on firebase auth)
• From the app, try to update photoUrl:

UserUpdateInfo userInfo = new UserUpdateInfo();
    userInfo.photoUrl=photoUrl;
    userInfo.displayName='fred';
    _auth.updateProfile(userInfo)

Logs

No log -> app crash
Run your application with flutter run and attach all the log output.

Run flutter analyze and attach any output of that command also.

Flutter Doctor

✓] Flutter (Channel beta, v0.2.3, on Mac OS X 10.12.6 16G29, locale fr-FR)
• Flutter version 0.2.3 at /Users/fvisticot/Tools/flutter
• Framework revision 5a58b36 (3 weeks ago), 2018-03-13 13:20:13 -0700
• Engine revision e61bb9a
• Dart version 2.0.0-dev.35.flutter-290c576264

[!] Android toolchain - develop for Android devices (Android SDK 26.0.2)
• Android SDK at /Users/fvisticot/Library/Android/sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-27, build-tools 26.0.2
• Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)
! Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses

[✓] iOS toolchain - develop for iOS devices (Xcode 9.2)
• Xcode at /Applications/Xcode.app/Contents/Developer
• Xcode 9.2, Build version 9C40b
• ios-deploy 1.9.2
• CocoaPods version 1.4.0

[✓] Android Studio (version 3.0)
• Android Studio at /Applications/Android Studio.app/Contents
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-915-b08)

[✓] VS Code (version 1.20.1)
• VS Code at /Applications/Visual Studio Code.app/Contents
• Dart Code extension version 2.10.0

[✓] Connected devices (3 available)
• Android SDK built for x86 • emulator-5554 • android-x86 • Android 5.0.2 (API 21) (emulator)
• iPhone fred • e1a670a9b4554a51269d6bc159b72ae78b9953f9 • ios • iOS 11.2.6
• iPhone 7 • F9B6637E-3B71-4146-BC7F-92CC05FDA7F7 • ios • iOS 11.2 (simulator)

! Doctor found issues in 1 category.