If you find yourself in the correct directory, follow these steps:

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/

In case you have index.android.js, use this command instead:

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/

Finally, run react-native run-android in your terminal.

SOLUTION

Execute the following command in your terminal:

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

Once completed, the output will display as follows:

`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

After completing this step, rerun react-native run-android to see your modifications take effect.

For more details, visit this link.

Success! I was able to resolve the issue by following these steps: Step 1)

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

Step 2)

react-native start

Access the package.json file and make the necessary updates.

"scripts": {
"android": "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 && react-native run-android",
"ios": "react-native run-ios"
},

If you are in the correct directory, follow these steps:

Execute the following command to automatically run both commands.

npm run android

If you're using a terminal, navigate to your project folder and run the following command:

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/

After stumbling upon this helpful comment on Github, my problem was finally fixed.

@neonsec Cool, it works like a charm!

and I discovered the reason behind this issue

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

Apparently, watchman does nothing if a .git/index.lock or a .hg/wlock file exists

The Solution: DELETE the .git/index.lock file

## navigate to root app directory
rm -f .git/index.lock

For more information, check out: https://github.com/facebook/watchman/blob/4b98623e8fde17588f27494f3ae8f084b9b227d3/QueryableView.cpp#L48

It's possible that you're modifying the incorrect file and forgetting to reference it in the AppRegistry class.

Take a look at your complete index.android.js or share it here to confirm that the file being imported is the one you need to edit.

To execute the script, follow these steps:

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

Once done, proceed with the following commands:

$ gradlew clean
$ react-native link

Here is a solution that worked for me:

To resolve this issue, navigate to your project folder and execute the following command:

c:\Users\lenger\Desktop\YourProjectFolder>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

During the process, the system will scan folders for symlinks before generating the necessary files.

\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

After executing the previous step, run 'react-native run-android' once again.

If you would like more details about this solution, you can visit the following link:

Solution for CodePush Users

Recently, I encountered a similar issue where my code wasn't updating in production builds but was functioning fine in development mode.

The culprit turned out to be CodePush. It was triggering updates because the app's version matched the last target release version set by CodePush as mandatory. This happened even though I had not changed the version number for testing purposes. To resolve this, I simply commented out the CodePush code in my App.js file and voila! The issue was resolved.

After giving @SmoggeR_js solution a shot and still encountering the same issue, consider the following steps (assuming keys have been created and the apk has already been signed)

1. Remove build from the android/app directory
2. Remove build from the android directory
3. Execute rm -rf $HOME/.gradle/caches/ to clear the cache
4. Navigate to build.gradle --> android/app/build.gradle
5. Comment out this line

   apply from: "../../node_modules/react-native/react.gradle"

6. Delete the index.android.bundle file from the assets folder

   ( android/app/src/main/assets/index.android.bundle)

7. Run the following command

   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

8. react-native run-android --variant=release

   (ensure that signed keys have been generated and updated in the gradle file as outlined in this reference ()

I was facing a similar issue, but I managed to fix it by removing the following line from my gradle.properties file:

org.gradle.configureondemand = true

One issue I encountered was when I decided to eliminate internet permissions from my AndroidManifest.xml file, thinking it wasn't necessary. Little did I know that React Native relies on this permission to establish a connection between my app and the development machine, allowing for live-debugging.

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

To resolve the issue, follow these steps: Launch your Android Studio and navigate to the "Tools" menu. From there, select "AVD manager" and right click on the emulator you are currently using. Choose "Wipe Data", then opt for "Cold Boot Now". This should address the problem at hand.

https://i.stack.imgur.com/a1ary.png

If you happen to be utilizing index.android.js, here are the steps you should take:

Erase the file named index.android.bundle located within android/app/src/main/assets directory 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

Follow these 3 simple steps to enhance your app:

1. Activate Live Reload
2. Deactivate Hot Reloading
3. In Dev Settings, deselect JS Dev Mode

Your app will now update automatically whenever you make changes to the code.

Give this a shot

cd .git (inside your react-native directory)
remove index.lock

then restart the metro bundler by running react-native start

voila!...

There was a missing index.android.js and index.ios.js file

In this scenario, it is necessary to adhere to the guidelines on your mobile device/emulator as outlined below:

https://i.stack.imgur.com/Rjp81.png

Upon saving your App.js, ensure to input the letter R twice in uppercase

To facilitate automatic updates, on an Android emulator press CTRL + M (CMD + M for MacOS) or shake the Android device with the active app running, then select either Hot reloading (keep current state, only changing edited file) or Live reloading (refresh entire application).

I made a silly mistake by forgetting to save the edits in App.js. Once I save the data, it will reflect correctly :)

When I deactivate debugging, the updates work for me. This is how I solved it.

In Chrome dev tools > Network > Disable cache Hopefully that will work for you too

If you navigate to your project directory, you'll find a package.json file. To simplify running your application, you can insert the code snippet below into the scripts section of that json file. After adding this snippet, you'll be able to start your application with just one command: npm run android-windows. Make sure to include the following code script for it to work correctly.

"android-windows": "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 && react-native run-android"

https://i.stack.imgur.com/OdtCz.jpg

If you are utilizing "codepush," be aware of the following:

After spending two hours attempting to understand why my Android application consistently reverted back to previous code, failing to display the latest features, I discovered the root cause: an outdated CodePush version causing the app to downgrade.

Consider removing the following folders:

• ./android/.idea directories.
• ./android/.gradle directories.

This solution resolved the issue for me

https://i.stack.imgur.com/w1kjan.png