fix(react-native): add prefabPublishing to hermes-engine for build-from-source #55310
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…om-source PR #54707 removed `prefabPublishing = true` from hermes-engine when switching to prebuilt Hermes by default. This broke build-from-source because AGP no longer generates the CMake config file needed by `find_package(hermes-engine)` in ReactAndroid's native build. Adding `prefabPublishing = true` back restores the CMake config generation and proper Gradle task ordering. The same PR also disables all hermes tasks when not building from source - which will make the CI work correctly - ie. not build hermes from source when not needed.
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Jan 27, 2026
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@chrfalch can you open a pick request for this one please? |
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@cortinico has imported this pull request. If you are a Meta employee, you can view this in D91581389. |
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Summary
PR #54707 removed
prefabPublishing = truefrom hermes-engine when switching to prebuilt Hermes by default. This broke build-from-source because AGP no longer generates the CMake config file needed byfind_package(hermes-engine)in ReactAndroid's native build.Adding
prefabPublishing = trueback restores the CMake config generation and proper Gradle task ordering.The same PR also disables all hermes tasks when not building from source - which will make the CI work correctly - ie. not build hermes from source when not needed.
Closes #55290
Changelog:
[ANDROID] [FIXED] - Re-added prefabPublishing=true to make Android build from source work again
Test Plan: