React native run-android do not updating modified code

Question

I am using React native 0.52.0 and react-native-cli 2.0.1 on my Windows PC for android development. Despite all the changes i have made. When I run react-native run-an

Answer 1

You are probably updating the wrong file and not calling it in the AppRegistry class.

Check (or post) your full index.android.js and make sure that the file that it is invoking and importing is the one you are actually modifying.

Answer 2

This comment on github fixed my problem.

@neonsec Cool, it do works !

and I find a reason why this happened

https://github.com/facebook/watchman/blob/4b98623e8fde17588f27494f3ae8f084b9b227d3/QueryableView.cpp#L48

it looks like when a .git/index.lock or a .hg/wlock file exist, watchman will do nothing

Solution: DELETE .git/index.lock file

## root app dir
rm -f .git/index.lock

otherlink: https://github.com/facebook/watchman/blob/4b98623e8fde17588f27494f3ae8f084b9b227d3/QueryableView.cpp#L48

Answer 3

If you are using index.android.js then follow the following steps:

Delete index.android.bundle within android/app/src/main/assets and then -

1. react-native bundle --platform android --dev false --entry-file index.android.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/

2. cd ./android

3. ./gradlew assembleRelease -x bundleReleaseJsAndAssets

Answer 4

SOLUTION

react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res

OUTPUT will be :

`c:\Users\lenger\Desktop\webrowser>react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res
Scanning folders for symlinks in c:\Users\lenger\Desktop\webrowser\node_modules (43ms)
Scanning folders for symlinks in c:\Users\lenger\Desktop\webrowser\node_modules (38ms)
Loading dependency graph, done.
bundle: start
bundle: finish
bundle: Writing bundle output to: android/app/src/main/assets/index.android.bundle
bundle: Done writing bundle output

and after

Run react-native run-android again, you will find your modification work.

https://lengerrong.blogspot.am/2018/01/react-native-run-android-do-not.html

Answer 5

For me the problem was that I had removed internet permissions from my AndroidManifest.xml (since it technically wasn't needed). React Native uses that permission to connect your app to the development machine (and enable live-debugging).

<uses-permission android:name="android.permission.INTERNET" />

Answer 6

This worked for me. Step 1)

rm -rf /usr/local/var/run/watchman && brew uninstall watchman && brew install watchman

Step2)

react-native start