pub get failed (69); Socket error trying to find cupertino_icons in https://pub.dartlang.org
Sounds like you are behind a proxy which is not properly configured. See also the workaround here:
- Corporate firewall. Look here for solution.
- Env variables (Win system env vars). Create two of them:
- name: PUB_HOSTED_URL; value: https://pub.flutter-io.cn
- name: FLUTTER_STORAGE_BASE_URL; value: https://storage.flutter-io.cn