Expected a key while parsing a block mapping

From Android Studio/IntelliJ: Click Packages get in the action ribbon at the top of pubspec. yaml . From VS Code: Click Get Packages located in right side of the action ribbon at the top of pubspec. yaml .

yaml file, often referred to as the pubspec. A basic pubspec is generated when you create a new Flutter project. It’s located at the top of the project tree and contains metadata about the project that the Dart and Flutter tooling needs to know.