Question 34701 in React native Question posted in
The official React Native documentation can be found here.

Error after buillding React Native on version 0.70

Error description

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After the App builds successfully, I got this error at my Metro while trying to install the app.

My react-native version is 0.70.

This the error:
Error: Exception in HostFunction: java.lang.UnsatisfiedLinkError: dlopen failed: library "libreanimated.so" not found

Tags:

3

Answers


  1. 0

    The error is coming because of react-native-reanimated library either remove the library or

    Use latest version

    And

    Go to root folder

    cd android && ./gradlew clean

    or check this

    https://github.com/software-mansion/react-native-reanimated/pull/3551/commits/25defa25d22a50dc068ac720ac4f3d7bde76aa17

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  2. 0

    I think you didn’t add the proguard rules inside the android app folder and follow the instructions they had given on the website

    https://docs.swmansion.com/react-native-reanimated/docs/fundamentals/installation

    Moreover, if you are using the react native version 0.68 & docs say to install the library which react native reanimated@next but it produces an error (merging error with the Hermes) until now there is no stable version of the reanimated library for the react native v0.70. Installing the lower version(stable version) is a better move than doing with the latest version

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  3. 0

    This can happen for other reasons as well. For me, it happened because in the
    androidgradle.properties file I did not enable the Architecture that I was trying to deploy to:

    reactNativeArchitectures=armeabi-v7a,arm64-v8a,x86,x86_64

    Make sure, the Emulator Arch or if you are using a physical device then that Arch is enabled in the above line.

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