چش شد ؟
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel master, 2.11.0-0.0.pre.560, on Ubuntu 21.10 5.13.0-30-generic,
locale en_US.UTF-8)
[✗] Android toolchain - develop for Android devices (the doctor check crashed)
✗ Flutter requires Android SDK 29 and the Android BuildTools 28.0.3
To update the Android SDK visit
https://flutter.dev/docs/get-started/install/linux#android-setup for detailed
instructions.
✗ Due to an error, the doctor check did not complete. If the error message below
is not helpful, please let us know about this issue at
https://github.com/flutter/flutter/issues.
✗ FileSystemException: Directory listing failed, path =
'/usr/lib/android-sdk/cmdline-tools/' (OS Error: Permission denied, errno = 13)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2021.1)
[✓] Android Studio
[✓] VS Code
[✓] Connected device (1 available)
[✓] HTTP Host Availability