# The current Dart SDK version does not satisfy the constraint: because your_project depends on package_a ^2.0.0 which requires SDK version >=3.5.0 <4.0.0, but your current SDK is 3.4.0

- **ID:** `flutter/sdk-constraint-violation`
- **Domain:** flutter
- **Category:** build_error
- **Verification:** ai_generated
- **Fix Rate:** 85%

## Root Cause

A dependency requires a higher Dart SDK version than the one configured in the project's pubspec.yaml or installed locally.

## Version Compatibility

| Version | Status | Introduced | Deprecated |
|---------|--------|------------|------------|
| Flutter 3.22 | active | — | — |
| Dart 3.4.0 | active | — | — |
| Dart 3.5.0 | active | — | — |

## Workarounds

1. **Upgrade the Dart SDK: run 'flutter upgrade' to get the latest Flutter which includes a higher Dart SDK, or download a newer Dart SDK manually and update the PATH.** (95% success)
   ```
   Upgrade the Dart SDK: run 'flutter upgrade' to get the latest Flutter which includes a higher Dart SDK, or download a newer Dart SDK manually and update the PATH.
   ```
2. **Downgrade the problematic package to a version that supports your current SDK. Check pub.dev for older versions and update pubspec.yaml: 'package_a: ^1.9.0'.** (80% success)
   ```
   Downgrade the problematic package to a version that supports your current SDK. Check pub.dev for older versions and update pubspec.yaml: 'package_a: ^1.9.0'.
   ```
3. **Use dependency_overrides in pubspec.yaml to force a version that works, but be aware of potential issues: dependency_overrides: package_a: ^1.9.0** (75% success)
   ```
   Use dependency_overrides in pubspec.yaml to force a version that works, but be aware of potential issues: dependency_overrides: package_a: ^1.9.0
   ```

## Dead Ends

- **** — Older versions may have the same SDK constraint or introduce other incompatibilities. (70% fail)
- **** — pubspec.lock is auto-generated and will be overwritten on next 'pub get'. (95% fail)
- **** — This doesn't upgrade the actual Dart SDK; the local SDK remains at 3.4.0. (90% fail)