Flutter run error : You have not accepted the license agreements

Question

I'm developing android and ios app with Google flutter.
when I add a new dependency like shared_preferences to pubspec.yaml and then execute flutter run in terminal, I got this error:

• What went wrong: A problem occurred configuring project ':shared_preferences'.
  You have not accepted the license agreements of the following SDK components: [Android SDK Platform 27].

I know why it happens! because the latest Android SDK platform on my system is 26 . it trys to download sdk 27 and then fails. no problem! I go to library cached folder which located here :

C:\Users...\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\shared_preferences-0.3.1\android

and edit build.gradle file and change compileSdkVersion 27 to compileSdkVersion 26. it works.
so far I have to do this for all new dependencies,
Is there any way such as defining a global build.gradle file for all dependencies? so no need to edit each buil.gradles individually.

Answer 1

try these:

1. Open your terminal
2. type flutter doctor --android-licenses
3. press y to accept every license.

Answer 2

This worked for me to solve the problem,

1. Open android studio(close project if any is open) >> Configure >> Appearance & Behavior >> Android SDK
2. Go to SDK Tools tab
3. Install Android SDK Command-line Tools (latest)
4. Open cmd and run yes | flutter doctor --android-licenses.

Then open the cmd and run flutter doctor