React Native Android Build Failure

Question

I'm currently having this error when I build my react native project using android studio. How do I fix this and remove the duplicates.

 Duplicate class com.facebook.imagepipeline.cache.CountingMemoryCacheInspector found in modules imagepipeline-base-2.2.0-runtime.jar (com.facebook.fresco:imagepipeline-base:2.2.0) and stetho-2.0.0-runtime.jar (com.facebook.fresco:stetho:2.0.0)
    Duplicate class com.facebook.imagepipeline.cache.CountingMemoryCacheInspector$DumpInfo found in modules imagepipeline-base-2.2.0-runtime.jar (com.facebook.fresco:imagepipeline-base:2.2.0) and stetho-2.0.0-runtime.jar (com.facebook.fresco:stetho:2.0.0)
    Duplicate class com.facebook.imagepipeline.cache.CountingMemoryCacheInspector$DumpInfoEntry found in modules imagepipeline-base-2.2.0-runtime.jar (com.facebook.fresco:imagepipeline-base:2.2.0) and stetho-2.0.0-runtime.jar (com.facebook.fresco:stetho:2.0.0)

Answer 1

I had a similar error when I upgraded my React Native project to 0.68.2.

Solved this by updating the Flipper SDK version. The flipper version was 0.33.1 and changed it to 0.99.0.

Credits

Answer 2

This seems to be caused by conflicts between Flipper and Fresco. Add this to the app level build.gradle:

debugImplementation("com.facebook.flipper:flipper:${FLIPPER_VERSION}") {
    exclude group:'com.facebook.fbjni'
}
debugImplementation("com.facebook.flipper:flipper-network-plugin:${FLIPPER_VERSION}") {
    exclude group:'com.facebook.fbjni'
}
debugImplementation("com.facebook.flipper:flipper-fresco-plugin:${FLIPPER_VERSION}") {
    exclude group:'com.facebook.fbjni'
    exclude group:'com.facebook.fresco'
}

(FLIPPER_VERSION is defined in gradle.properties as 0.33.1)