How to rebuild the entire Android folder?

Question

I have messed the files up in the Android folder and would like to rebuild the Android project inside of the Android folder. How do I do this?

Is it safe to delete the Android folder and then run react-native run-android, will that make it again?

Everything I've coded was wrote in index.android.js.

Answer 1

EDIT: Original answer was written in 2017 (RN v.0.47?). React-native environment evolved and AFAIK this solution is no longer valid.

Probably safe to remove.

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I had similar problem, and ./gradlew clean didn't work, but i found hacky solution from How can I regenerate ios folder in React Native project?

Delete android folder (probably ios too), and then hacky part ->:

react-native upgrade  

(it regenerates folders, but it shouldn't be used to upgrade RN..)

And then

react-native link react-native run-android 

It worked for me :)

EDIT : one observation -> react-native sometimes goes crazy and cannot run some commands. Launching a new terminal helps. Bizarre :)

Answer 2

The solution if ur version of react-native >= 0.61.0 :

1. sudo rm -rf android/ ios/

2. yarn add react-native-eject

3. npx react-native eject

enjoy !