How to fix "Android license status unknown" in flutter

1. Install Android SDK Command-line Tools on android studio using the SDK manager

2. Run flutter doctor --android-licenses

I solved this problem by installing the command line tool.

And then rerun

flutter doctor --android-licenses

I have followed these steps. It worked for me.

1. went to Environment variables and added ANDROID_HOME with a variable value of: C:\Users\%username%\AppData\Local\Android\Sdk

2. then my JAVA_HOME with this variable value: C:\Program Files\Android\Android Studio\jre

3. then my Path with this variable value: C:\Users\%username%\flutter\bin

4. then I ran the following command

   flutter doctor
   

5. Got the output of Doctor summary (to see all details, run flutter doctor -v):

   [√] Flutter (Channel beta, v0.2.3, on Microsoft Windows [Version 10.0.16299.309], 
   locale en-US)
   [!] Android toolchain - develop for Android devices (Android SDK 27.0.3)
   ! Some Android licenses not accepted.  To resolve this, run: flutter doctor -- 
   android-licenses
   [√] Android Studio (version 3.1)
   [√] Connected devices (1 available)
   
   ! Doctor found issues in 1 category.
   

6. Then I ran

   flutter doctor --android-licenses
   

   and accepted all Terms & Conditions with (y)