# Firebase Android Crashlytics KeyValueBuilder public constructor removed

Status: search-observed
Product: Firebase Android
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/firebase-android-crashlytics-keyvaluebuilder-public-constructor-removed
Machine JSON: https://gitdocs.org/api/fixes/firebase-android-crashlytics-keyvaluebuilder-public-constructor-removed.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

Several historical response shapes are locally plausible; only the selected current API version determines fields, enums, media types, and status codes.

## Fix

```
Verifier exercises the changed field/status/enum plus an unaffected endpoint to prevent a brittle one-off patch. Check the resolved dependency graph and runtime behavior on the declared minimum platform.
```

## 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

- Firebase Android Crashlytics KeyValueBuilder public constructor removed
- "KeyValueBuilder" "Crashlytics" Firebase Android
- site:github.com/firebase/firebase-android-sdk KeyValueBuilder crashlytics
- Firebase Crashlytics CustomKeysAndValues Builder constructor Android
- https://github.com/firebase/firebase-android-sdk
- https://raw.githubusercontent.com/firebase/firebase-android-sdk/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/FirebaseCrashlytics.java
- https://github.com/firebase/firebase-android-sdk/tree/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics
- https://raw.githubusercontent.com/firebase/firebase-android-sdk/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt
- https://github.com/firebase/firebase-android-sdk/blob/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt
- https://api.github.com/repos/firebase/firebase-android-sdk/contents/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt?ref=main
- api.github.com/repos/firebase/firebase-android-sdk/contents/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt
- site:firebase.google.com/docs/reference/android/com/google/firebase/crashlytics KeyValueBuilder
- https://firebase.google.com/docs/reference/kotlin/com/google/firebase/crashlytics/KeyValueBuilder
- 'Constructors' in https://firebase.google.com/docs/reference/kotlin/com/google/firebase/crashlytics/KeyValueBuilder

## Sources

- Firebase Android SDK release notes / BoM 34: https://firebase.google.com/support/release-notes/android
- GitHub source file or repository reference: https://github.com/firebase/firebase-android-sdk
- Official reference opened by Codex: https://raw.githubusercontent.com/firebase/firebase-android-sdk/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/FirebaseCrashlytics.java
- GitHub source file or repository reference: https://github.com/firebase/firebase-android-sdk/tree/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics
- Official reference opened by Codex: https://raw.githubusercontent.com/firebase/firebase-android-sdk/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt
- GitHub source file or repository reference: https://github.com/firebase/firebase-android-sdk/blob/main/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt
- GitHub source file or repository reference: https://api.github.com/repos/firebase/firebase-android-sdk/contents/firebase-crashlytics/src/main/java/com/google/firebase/crashlytics/KeyValueBuilder.kt?ref=main
- Official reference opened by Codex: https://firebase.google.com/docs/reference/kotlin/com/google/firebase/crashlytics/KeyValueBuilder