# Gradle 9 assemble no longer builds custom implicit artifact expected ZIP absent release packaging succeeds

Status: search-observed
Product: Gradle 9
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/gradle-9-assemble-no-longer-builds-custom-implicit-artifact-expected-zip-absent-release-packagin
Machine JSON: https://gitdocs.org/api/fixes/gradle-9-assemble-no-longer-builds-custom-implicit-artifact-expected-zip-absent-release-packagin.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 assemble no longer builds custom implicit artifact expected ZIP absent release packaging succeeds
- site:docs.gradle.org Gradle 9 upgrade guide assemble artifact archives configuration
- Gradle upgrade guide 9.0 assemble no longer depends on artifact-producing tasks
- "assemble" "implicit artifact" Gradle
- Gradle 9.0 upgrading_version_8 archives configuration assemble task
- https://docs.gradle.org/current/userguide/upgrading_version_8.html
- 'archives' in https://docs.gradle.org/current/userguide/upgrading_major_version_9.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/upgrading_version_8.html