react-native-reanimated ninja: error: '.../react-android-0.82.1-debug/.../libreactnative.so', needed by .../libworklets.so, missing and no known rule to make it

Description

After upgrading my project from React Native 0.75.3 → React Native 0.82.1, the Android build started failing when using react-native-reanimated (and its react-native-worklets dependency).

The CMake/Ninja build fails with this error:

Task :react-native-worklets:buildCMakeDebug[armeabi-v7a][worklets] FAILED ninja: error: '/Users/zezo/.gradle/caches/9.0.0/transforms/.../react-android-0.82.1-debug/prefab/modules/reactnative/libs/android.armeabi-v7a/libreactnative.so', needed by '../../../../build/intermediates/cxx/Debug/.../obj/armeabi-v7a/libworklets.so', missing and no known rule to make it

It seems libreactnative.so for the armeabi-v7a ABI is not generated or included in the react-android prefab for React Native 0.82.1.

React Native version: Before: "react-native": "0.75.3" Now: "react-native": "0.82.1"

Reanimated version: "react-native-reanimated": "^4.1.3",

Environment

macOS: 15.6.1 Android Gradle Plugin: 9.0.0 NDK: 27.1.12297006 CMake: 4.1.1 JDK: 17.0.17

Steps to reproduce

Start with a React Native 0.75.3 app (works fine).
Upgrade to React Native 0.82.1.
Install react-native-reanimated and react-native-worklets.
Run npx react-native run-android.
Build fails at: react-native-worklets:buildCMakeDebug[armeabi-v7a][worklets]

Snack or a link to a repository

private repo (not share publicly)

Reanimated version

4.1.3

Worklets version

0.6.1

React Native version

0.82.1

Platforms

Android

JavaScript runtime

None

Workflow

None

Architecture

None

Build type

Debug app & dev bundle

Device

Real device

Host machine

macOS

Device model

vivo y200

Acknowledgements

No

Oct 30 '25 16:10 Naresh-Dhamu

Hi @Naresh-Dhamu, thanks for reporting this issue.

Please try removing all build artifacts (with rm -rf node_modules android/build android/app/build android/.cxx android/app/.cxx or with git clean -fdX – note that this will remove all untracked files, including things like .env etc.) and try to build the app again.

Nov 03 '25 09:11 tomekzaw

I've been having this issue consistently with a bunch of apps on several machines. Removing node_modules and the android directory doesn't fix it.

I have a repo that consistently fails on my 2 laptops. I have a lot more that fail, but this one is public.

New expo apps seem to work.

I tried a bunch of things, like removing ~/.gradle, updating my Android SDKs to the latest, updating Node version, but nothing seems to help.

Happy to provide any more details. Any suggestions or things I could try would be really helpful. 🙏

➜  ~ node --version 
v24.5.0
➜  ~ pnpm --version
10.20.0
➜  sandbox git clone https://github.com/beeman/test-expo-web3js-wallet-ui test-app
➜  sandbox cd test-app
➜  test-app git:(main) pnpm install
➜  test-app git:(main) pnpm run android

Full output can be seen in this gist: https://gist.github.com/beeman/3ac09000727f2e95b9b786582745a149

I created this script that gets me into the error state directly. @Naresh-Dhamu curious to hear if this is the same for you 🙏

Nov 20 '25 17:11 beeman

Here is the full output from the Android build.

The repo with the generated project is here

➜  sandbox ~/dev/beeman/expo-reanimated-build-issue/clean-expo-app.sh
App name        : app-2025-11-25-03-11-48
Package manager : pnpm
----------------------------------------
Running install command : 'pnpm create expo-app@latest app-2025-11-25-03-11-48'
----------------------------------------
.../19ab8234275-c1be                     |   +1 +
.../19ab8234275-c1be                     | Progress: resolved 1, reused 1, downloaded 0, added 1, done
Creating an Expo project using the default template.

To choose from all available templates (https://github.com/expo/expo/tree/main/templates) pass in the --template arg:
  $ pnpx create-expo-app --template

To choose from all available examples (https://github.com/expo/examples) pass in the --example arg:
  $ pnpx create-expo-app --example

✔ Downloaded and extracted project files.
> pnpm config --location project set node-linker hoisted
> pnpm install
 WARN  Request took 10473ms: https://registry.npmjs.org/@typescript-eslint%2Ftypes
 WARN  3 deprecated subdependencies found: [email protected], [email protected], [email protected]
Packages: +952
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Progress: resolved 918, reused 872, downloaded 13, added 952, done
Done in 31.2s using pnpm v10.22.0

✅ Your project is ready!

To run your project, navigate to the directory and run one of the following pnpm commands.

- cd app-2025-11-25-03-11-48
- pnpm run android
- pnpm run ios
- pnpm run web
----------------------------------------
Expo app created successfully!
----------------------------------------
Changing directory to 'app-2025-11-25-03-11-48'
----------------------------------------
Running build command : 'pnpm expo run:android'
----------------------------------------
› Android package name: com.anonymous.app20251125031148
✔ Created native directory
✔ Updated package.json
✔ Finished prebuild
› Opening emulator Pixel_8_Pro
› Building app...
Starting a Gradle Daemon (subsequent builds will be faster)
Configuration on demand is an incubating feature.

> Configure project :
[ExpoRootProject] Using the following versions:
  - buildTools:  36.0.0
  - minSdk:      24
  - compileSdk:  36
  - targetSdk:   36
  - ndk:         27.1.12297006
  - kotlin:      2.1.20
  - ksp:         2.1.20-2.0.1

> Configure project :expo

Using expo modules
  - expo-constants (18.0.10)
  - expo-modules-core (3.0.26)
  - [📦] expo-asset (12.0.10)
  - [📦] expo-file-system (19.0.19)
  - [📦] expo-font (14.0.9)
  - [📦] expo-haptics (15.0.7)
  - [📦] expo-image (3.0.10)
  - [📦] expo-keep-awake (15.0.7)
  - [📦] expo-linking (8.0.9)
  - [📦] expo-splash-screen (31.0.11)
  - [📦] expo-system-ui (6.0.8)
  - [📦] expo-web-browser (15.0.9)


> Task :expo-modules-core:compileDebugJavaWithJavac
Note: Some input files use or override a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

> Task :app:processDebugMainManifest
/private/tmp/sandbox/app-2025-11-25-03-11-48/android/app/src/debug/AndroidManifest.xml:6:5-162 Warning:
        application@android:usesCleartextTraffic was tagged at AndroidManifest.xml:6 to replace other declarations but no other declaration present
/private/tmp/sandbox/app-2025-11-25-03-11-48/android/app/src/debug/AndroidManifest.xml Warning:
        provider#expo.modules.filesystem.FileSystemFileProvider@android:authorities was tagged at AndroidManifest.xml:0 to replace other declarations but no other declaration present

> Task :expo-constants:compileDebugKotlin
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo-constants/android/src/main/java/expo/modules/constants/ConstantsModule.kt:12:5 'fun Constants(legacyConstantsProvider: () -> Map<String, Any?>): Unit' is deprecated. Use `Constant` or `Property` instead.

> Task :react-native-reanimated:buildCMakeDebug[arm64-v8a][reanimated] FAILED
C/C++: ninja: error: '/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/react-native-worklets/android/build/intermediates/cmake/debug/obj/arm64-v8a/libworklets.so', needed by '../../../../build/intermediates/cxx/Debug/653d2d6m/obj/arm64-v8a/libreanimated.so', missing and no known rule to make it

> Task :expo:compileDebugKotlin
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ExpoModulesPackage.kt:34:16 This declaration overrides a deprecated member but is not marked as deprecated itself. Add the '@Deprecated' annotation or suppress the diagnostic.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ExpoReactHostFactory.kt:8:8 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ExpoReactHostFactory.kt:80:22 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:24:8 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:58:33 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:105:16 This declaration overrides a deprecated member but is not marked as deprecated itself. Add the '@Deprecated' annotation or suppress the diagnostic.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:105:38 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:113:16 This declaration overrides a deprecated member but is not marked as deprecated itself. Add the '@Deprecated' annotation or suppress the diagnostic.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:114:21 'val reactInstanceManager: ReactInstanceManager' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:168:36 'constructor(activity: Activity, reactNativeHost: ReactNativeHost?, appKey: String?, launchOptions: Bundle?, fabricEnabled: Boolean): ReactDelegate' is deprecated. Deprecated since 0.81.0, use one of the other constructors instead.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:279:77 'val reactInstanceManager: ReactInstanceManager' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:282:22 'val reactInstanceManager: ReactInstanceManager' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactActivityDelegateWrapper.kt:286:54 'val reactInstanceManager: ReactInstanceManager' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapper.kt:6:8 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapper.kt:15:9 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapper.kt:47:60 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapperBase.kt:7:8 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapperBase.kt:16:23 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapperBase.kt:89:16 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/ReactNativeHostWrapperBase.kt:101:38 'class ReactNativeHost : Any' is deprecated. Deprecated in Java.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/fetch/ExpoFetchModule.kt:30:39 'constructor(reactContext: ReactContext): ForwardingCookieHandler' is deprecated. Use the default constructor.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/fetch/NativeResponse.kt:42:16 This declaration overrides a deprecated member but is not marked as deprecated itself. Add the '@Deprecated' annotation or suppress the diagnostic.
w: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/expo/android/src/main/java/expo/modules/fetch/NativeResponse.kt:44:11 'fun deallocate(): Unit' is deprecated. Use sharedObjectDidRelease() instead.

[Incubating] Problems report is available at: file:///private/tmp/sandbox/app-2025-11-25-03-11-48/android/build/reports/problems/problems-report.html

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':react-native-reanimated:buildCMakeDebug[arm64-v8a][reanimated]'.
> com.android.ide.common.process.ProcessException: ninja: Entering directory `/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/react-native-reanimated/android/.cxx/Debug/653d2d6m/arm64-v8a'
  [0/2] Re-checking globbed directories...

  C++ build system [build] failed while executing:
      /Users/beeman/Library/Android/sdk/cmake/3.22.1/bin/ninja \
        -C \
        /private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/react-native-reanimated/android/.cxx/Debug/653d2d6m/arm64-v8a \
        reanimated
    from /private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/react-native-reanimated/android
  ninja: error: '/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/react-native-worklets/android/build/intermediates/cmake/debug/obj/arm64-v8a/libworklets.so', needed by '../../../../build/intermediates/cxx/Debug/653d2d6m/obj/arm64-v8a/libreanimated.so', missing and no known rule to make it

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.
> Get more help at https://help.gradle.org.

Deprecated Gradle features were used in this build, making it incompatible with Gradle 9.0.

You can use '--warning-mode all' to show the individual deprecation warnings and determine if they come from your own scripts or plugins.

For more on this, please refer to https://docs.gradle.org/8.14.3/userguide/command_line_interface.html#sec:command_line_warnings in the Gradle documentation.

BUILD FAILED in 25s
243 actionable tasks: 143 executed, 100 from cache
Error: /private/tmp/sandbox/app-2025-11-25-03-11-48/android/gradlew app:assembleDebug -x lint -x test --configure-on-demand --build-cache -PreactNativeDevServerPort=8081 -PreactNativeArchitectures=arm64-v8a exited with non-zero code: 1
Error: /private/tmp/sandbox/app-2025-11-25-03-11-48/android/gradlew app:assembleDebug -x lint -x test --configure-on-demand --build-cache -PreactNativeDevServerPort=8081 -PreactNativeArchitectures=arm64-v8a exited with non-zero code: 1
    at ChildProcess.completionListener (/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/@expo/spawn-async/src/spawnAsync.ts:67:13)
    at Object.onceWrapper (node:events:622:26)
    at ChildProcess.emit (node:events:507:28)
    at maybeClose (node:internal/child_process:1101:16)
    at Process.ChildProcess._handle.onexit (node:internal/child_process:305:5)
    ...
    at spawnAsync (/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/@expo/spawn-async/src/spawnAsync.ts:28:21)
    at spawnGradleAsync (/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/@expo/cli/src/start/platforms/android/gradle.ts:134:28)
    at assembleAsync (/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/@expo/cli/src/start/platforms/android/gradle.ts:83:16)
    at runAndroidAsync (/private/tmp/sandbox/app-2025-11-25-03-11-48/node_modules/@expo/cli/src/run/android/runAndroidAsync.ts:62:24)

Nov 24 '25 23:11 beeman

You're trying to build app in /tmp (linked to /private/tmp on macOS). See https://github.com/expo/expo/issues/40525.

Nov 24 '25 23:11 tomekzaw

Hey! 👋

The issue doesn't seem to contain a minimal reproduction.

Could you provide a snack or a link to a GitHub repository under your username that reproduces the problem?

Nov 24 '25 23:11 github-actions[bot]