mac@MACs-MacBook-Air ChatApp % flutter pub get
Error: No pubspec.yaml file found.
This command should be run from the root of your Flutter project.
mac@MACs-MacBook-Air ChatApp % flutter upgrade
Flutter is already up to date on channel stable
Flutter 2.0.4 • channel stable • https://github.com/flutter/flutter.git
Framework • revision b1395592de (5 days ago) • 2021-04-01 14:25:01 -0700
Engine • revision 2dce47073a
Tools • Dart 2.12.2
mac@MACs-MacBook-Air ChatApp % flutter clean
Error: No pubspec.yaml file found.
This command should be run from the root of your Flutter project.
mac@MACs-MacBook-Air ChatApp %
答案 0 :(得分：1)
在你的项目根目录执行相关命令。如果您不小心删除了 pubspec.yaml，请创建一个新的。