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React Native 0.74.0 Android builds fail "cannot find symbol import com.facebook.react.fabric.FabricJSIModuleProvider"

After upgrading to RN 0.74.0 the npx react-native run-android fails with the error –

error Failed to install the app. Command failed with exit code 1: ./gradlew app:installDebug -PreactNativeDevServerPort=8081
/Users/phil/Code/app-name/android/app/src/main/java/com/app-name/app/newarchitecture/MainApplicationReactNativeHost.java:19: error: cannot find symbol
import com.facebook.react.fabric.FabricJSIModuleProvider; ^ symbol: class FabricJSIModuleProvider location: package com.facebook.react.fabric

I’ve followed the steps in upgrading from 0.7.3.6 to 0.74.0 using the Upgrade Helper. iOS builds are okay but facing this issue with Android builds. I understand this is related to using the New Architecture, however I have newArchEnabled=false setting in gradle.properties.

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  1. Chosen as BEST ANSWER
    0

    So, I managed to work around this by deleting the newarchitecture folder which contained the MainApplicationReactNativeHost.java file (and a few other java files). Since I'm not using the New Architecture in RN (newArchEnabled=false) I figured I don't need these files. I can now build successfully for Android.


  2. 0

    I’m not sure, but try :

    • clear cache, delete build folder, rebuild

    If it still not work :

    • add this in your proguard-rules.pro

      -keep class com.facebook.react.fabric.** { *; }

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