Didn't find class “androidx.core.content.FileProvider”

Question

I migrated my app to AndroidX and it\'s crashing on launch on API level 21. My application throws this exception:

10-08          


        

Answer 1

The problem is your React Native android project is not in AndroidX while react-native-image-picker is in an AndroidX environment; therefore, it is missing packages from the androidx package library.

Simple fix is adding the following lines to your ./android/gradle.properties file:

android.useAndroidX=true
android.enableJetifier=true

If you have any existing RN libraries that uses old android packages, your project won't build since they will be missing once you updated your project.

A clever tool found here deals with RN libraries that uses old android packages and brings them up to date.

npm i --save-dev jetifier
npx jetify
react-native run-android

All checked out and it's working on my end. Hope this helps anyone and please do share if it does.

Source https://github.com/react-native-community/react-native-image-picker/issues/1088#issuecomment-509755692