Using react-native-picker/picker library
A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade Error while merging dex archives: Learn how to resolve the issue at https://developer.android.com/studio/build/dependencies#duplicate_classes. Program type already present: com.reactnativecommunity.picker.BuildConfig
Just do:
npm uninstall @react-native-community/picker