Minimum platform level
Firebase Android App Check minSdk 23 release notes
Manifest merger/build rejects an app still targeting devices below API 23.
Agent Quick Fix
Repair against the current Firebase Android contract, then keep the change narrow and source-backed.
Product: Firebase Android
Current-contract area: Firebase App Check raises minSdk to 23
Likely root cause: Manifest merger/build rejects an app still targeting devices below API 23.
Repair direction: Verifier checks an explicit product decision: raise the app floor with metadata/tests, or pin a still-supported SDK line. Check the resolved dependency graph and runtime behavior on the declared minimum platform.Symptom
Manifest merger/build rejects an app still targeting devices below API 23.
Why This Happens
The source can compile on the developer's newer device while the SDK's newly raised deployment/minSdk target fails older build or runtime matrices.
Common Wrong Fixes
- 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.
Codex Search Keywords
These are the search terms observed in a neutral Codex validation run for this failure shape.
Firebase Android App Check minSdk 23 release notes
site:firebase.google.com Android App Check minSdkVersion 23 Firebase
Firebase App Check Android minSdkVersion 23