Could not resolve host when initializing flutter

[agucova]

I'm copying the issue I made on the main flutter repo.

When installing the Flutter snap and initializing it through any command, the line curl: (6) Could not resolve host: stable appears, with no clear side effect.

Checking DNS logs show indeed failed A and AAAA DNS requests for stable and stable.lan.

Steps to Reproduce

1. Install Flutter using snap. snap install --classic flutter
2. Run flutter doctor

This is on Pop_OS! 20.10 (Ubuntu derivative).

Logs

Logs

➜ sudo snap install flutter --classic
flutter 0+git.0a044ad from Flutter Team✓ installed

➜ flutter doctor -v
Initializing Flutter
Downloading https://storage.googleapis.com/flutter_infra/releases/beta/linux/flutter_linux_2.0.1-beta.tar.xz
stable/linux/flutter_linux_2.0.1-stable.tar.xz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  573M  100  573M    0     0  58.4M      0  0:00:09  0:00:09 --:--:-- 64.3M
curl: (6) Could not resolve host: stable
Flutter initialized
Flutter 2.0.1 • channel beta • https://github.com/flutter/flutter.git
Framework • revision c5a4b4029c (3 days ago) • 2021-03-04 09:47:48 -0800
Engine • revision 40441def69
Tools • Dart 2.12.0
Running "flutter pub get" in flutter_tools...                      11.3s
[✓] Flutter (Channel beta, 2.0.1, on Linux, locale en_US.UTF-8)
    • Flutter version 2.0.1 at /home/agucova/snap/flutter/common/flutter
    • Framework revision c5a4b4029c (3 days ago), 2021-03-04 09:47:48 -0800
    • Engine revision 40441def69
    • Dart version 2.12.0
    • Flutter download mirror https://storage.googleapis.com

[!] Android toolchain - develop for Android devices
    • Android SDK at /usr/lib/android-sdk
    ✗ Unable to locate Android SDK.
      Install Android Studio from: https://developer.android.com/studio/index.html
      On first launch it will assist you in installing the Android SDK components.
      (or visit https://flutter.dev/docs/get-started/install/linux#android-setup for
      detailed instructions).
      If the Android SDK has been installed to a custom location, please use
      `flutter config --android-sdk` to update to that location.

    ✗ No valid Android SDK platforms found in /usr/lib/android-sdk/platforms.
      Directory was empty.
    • Try re-installing or updating your Android SDK,
      visit https://flutter.dev/docs/get-started/install/linux#android-setup for
      detailed instructions.

[✓] Chrome - develop for the web
    • Chrome at google-chrome

[!] Android Studio (not installed)
    • Android Studio not found; download from
      https://developer.android.com/studio/index.html
      (or visit https://flutter.dev/docs/get-started/install/linux#android-setup for
      detailed instructions).

[✓] VS Code (version 1.53.2)
    • VS Code at /usr/share/code
    • Flutter extension can be installed from:
      🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (1 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 88.0.4324.50 beta

! Doctor found issues in 2 categories.

[agucova]

This only happens when installing via snap.

[MarcusTomlinson]

Thanks for the detailed report @agucova. This is now fixed in the latest snap release.