Flutter projects often depend on third-party packages, but these packages may specify conflicting versions for shared dependencies.

Common Error:

pgsql:

Because package A depends on version ^1.2.3 and package B depends on ^1.3.0, version solving failed.

What is the Solutions?

1. Use Dependency Overrides (Temporary Fix)

yaml:

dependency_overrides: some_package: ^1.3.0

Use this with caution—may break functionality.

2. Upgrade Conflicting Packages Run:

bash:

flutter pub outdated
flutter pub upgrade

3. Use Compatible Versions Check pub.dev for compatible ranges across packages.

4. Use flutter pub deps Analyze dependency tree:

bash:

flutter pub deps --style=compact

Always lock working sets with pubspec.lock in teams or CI/CD pipelines.