# Firebase C++ SDK Google Mobile Ads removed bundled GMA link failure

Status: search-observed
Product: Firebase C++
Last verified: 2026-06-25
Canonical HTML: https://gitdocs.org/fix/firebase-c-sdk-google-mobile-ads-removed-bundled-gma-link-failure
Machine JSON: https://gitdocs.org/api/fixes/firebase-c-sdk-google-mobile-ads-removed-bundled-gma-link-failure.json

## Exact Symptom

See the observed Codex queries below.

## Diagnosis

A BoM or aggregate package can stop publishing modules while source imports still look correct and old caches continue to mask the break.

## Fix

```
Verifier checks the supported main-module API and dependency graph without reintroducing removed artifacts. Check the supported successor flow and user-visible result.
```

## 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 C++ SDK Google Mobile Ads removed bundled GMA link failure
- site:firebase.google.com/docs/cpp/release-notes mobile ads C++ SDK
- https://firebase.google.com/support/release-notes/cpp-relnotes

## Sources

- Firebase C++ SDK release notes: https://firebase.google.com/support/release-notes/cpp-relnotes
- Official reference opened by Codex: https://firebase.google.com/support/release-notes/cpp-relnotes