flutter dependency_error ai_generated true

Because every version of package_a depends on package_b ^2.0.0 and package_c depends on package_b ^1.0.0, version solving failed.

ID: flutter/dependency-version-solving-failed

Also available as: JSON · Markdown
80%Fix Rate
87%Confidence
3Evidence
2023-01-01First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
3 active — — —

Root Cause

Dart pub cannot resolve a compatible set of package versions. Two or more packages require conflicting versions of a transitive dependency.

generic

Workarounds

  1. 88% success Run flutter pub outdated and upgrade the conflicting packages 
    flutter pub outdated  # shows which packages have newer versions; flutter pub upgrade --major-versions

    Sources: https://api.flutter.dev/

  2. 90% success Check the dependency tree to find the conflict source 
    flutter pub deps  # shows full dependency tree; look for the package with conflicting constraints
  3. 75% success Contact package maintainer or fork the package with updated constraints 
    If a package pins an old dependency, fork it temporarily and update the pubspec.yaml constraint

Dead Ends

Common approaches that don't work:

  1. Use dependency_overrides to force a specific version 78% fail

    dependency_overrides bypasses version constraints; the overridden package may be incompatible at runtime causing subtle bugs

  2. Pin all packages to exact versions to prevent conflicts 72% fail

    Exact version pins prevent receiving security patches and make future upgrades harder