# Gradle 9 configuration cache warning mode discards entries incompatible tasks

Status: search-observed
Product: Gradle 9
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/gradle-9-configuration-cache-warning-mode-discards-entries-incompatible-tasks
Machine JSON: https://gitdocs.org/api/fixes/gradle-9-configuration-cache-warning-mode-discards-entries-incompatible-tasks.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

Build scripts can be syntactically plausible while the current build-system major removes implicit artifacts/APIs or raises its daemon runtime floor.

## Fix

```
Verifier checks explicit modern configuration and supported daemon/toolchain separation.
```

## Avoid

- Changing local code without checking the current external contract.
- Retrying the same install, build, or API call with no version/source change.
- Applying a broad unsafe bypass when a narrow compatibility fix is available.

## Observed Codex Queries

- Gradle 9 configuration cache warning mode discards entries incompatible tasks
- site:docs.gradle.org Gradle 9 configuration cache warning mode incompatible tasks
- Gradle 9 configuration cache warning mode
- https://docs.gradle.org/current/userguide/configuration_cache_enabling.html
- https://docs.gradle.org/current/userguide/configuration_cache_debugging.html
- 'Configuration Cache' in https://docs.gradle.org/current/userguide/upgrading_version_8.html

## Sources

- Upgrading to Gradle 9: https://docs.gradle.org/current/userguide/upgrading_major_version_9.html
- Official reference opened by Codex: https://docs.gradle.org/current/userguide/configuration_cache_enabling.html
- Official reference opened by Codex: https://docs.gradle.org/current/userguide/configuration_cache_debugging.html