Easy project configuration

The Flutter pubspec.yaml in detail

The pubspec.yaml file is the main configuration file for your Flutter app. In this article, we’ll have a look at its contents.

When developing a Flutter app or package, you’ll eventually come across the pubspec.yaml file. I’ll give you an overview of the contents and how to work with the file. It contains package dependency information, SDK version constraints, or project settings like the name. The used syntax is YAML, an easy-to-use and understandable format. Pay attention to indentation, colons, and link breaks. Otherwise, there will be parsing errors by the Flutter/Dart tooling.

The default file

When creating a new Flutter project, a pubspec.yaml file is automatically created depending on the project template. The app template’s file that will be created if you don’t specify another template looks like this (comments were removed):