Flutter is an open-source software development kit (SDK) created by Google that allows developers to build natively compiled applications for mobile, web, and desktop from a single codebase.

Commands

flutter pub – Commands for managing Flutter packages

add	Add a dependency to pubspec.yaml.
get	Get the current package’s dependencies.
outdated	Analyze dependencies to find which ones can be upgraded.

flutter pub get

flutter clean – Delete the build/ and .dart_tool/ directories

flutter clean

flutter doctor – Show information about the installed tooling

flutter doctor