My react native project build fails somehow because of this error:
Execution failed for task ':app:mergeDebugNativeLibs'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.MergeNativeLibsTask$MergeNativeLibsTaskWorkAction
> 2 files found with path 'lib/arm64-v8a/libfbjni.so' from inputs:
- C:\Users\Antonio\.gradle\caches\transforms-3\7cca348744e25f57fc2d9f871aa73c9a\transformed\jetified-react-native-0.71.0-rc.0-debug\jni\arm64-v8a\libfbjni.so
- C:\Users\Antonio\.gradle\caches\transforms-3\08b0f5c7017bf081f79b63ea5b053dc0\transformed\jetified-fbjni-0.3.0\jni\arm64-v8a\libfbjni.so
If you are using jniLibs and CMake IMPORTED targets, see
https://developer.android.com/r/tools/jniLibs-vs-imported-targets
Anybody got a clue what could cause the build to fail? I haven't edited any build file and/or removed/installed/upgraded new packages thanks
For me this worked (after reading Tony's link), my version of react was 0.66.0
Changed this file android\app\build.gradle
implementation "com.facebook.react:react-native:+" // From node_modules
to
implementation "com.facebook.react:react-native:0.66.0!!" // From node_modules
Short answer:
in your android/app/build.gradle
change
implementation 'com.facebook.react:react-native:+'
to ---> (replace 0.67.2 with your current react native version)
implementation 'com.facebook.react:react-native:0.67.2!!'
Long answer:
This is happening because all the templates reference the React Native dependency by range, like implementation 'com.facebook.react:react-native:+'. Usually this dependency gets resolved from the local Maven repo in ./node_modules/react-native/android but since it has been published to Maven Central it's now grabbing the very latest RC.
You can resolve this problem by forcing the React Native dependency to the version you expect with something like this implementation 'com.facebook.react:react-native:0.67.2!!' in your app's Gradle file. The !! is shorthand for restricting Gradle from upgrading if your project or its transitive dependencies depend on a newer version.
work for me, if your react native application version >= 0.63 you can update the patch version which should fix your problem.
link: https://github.com/facebook/react-native/issues/35210#:~:text=We%20have%20prepared%20releases%20for%20all%20the%20main%20versions%20of%20react%2Dnative%20with%20an%20hotfix%3A
if not just go to android/build.gradle and then in the allprojects object add the following code with the current version of react native in package.json
configurations.all {
resolutionStrategy {
force 'com.facebook.react:react-native:CURRENT_VERSION_OF_REACT_NATIVE'
}
}
Here's a workaround to fix this problem if you are not using latest version of react-native.
https://github.com/facebook/react-native/issues/35210
Go to android folder -> build.gradle file -> inside allprojects object and add following code. Add react native version from node_modules -> react-native -> package.json // "version": "0.68.2".
configurations.all {
resolutionStrategy {
force 'com.facebook.react:react-native:0.68.2'
}
}
See fb/rn#35204
This is the Official recommended fix!
Found through this issue: https://github.com/facebook/react-native/issues/35210.
Copied from this PR here
For my RN 0.66.0 project I only had to add theses lines:
allprojects {
repositories {
exclusiveContent {
// Official recommended fix for Android build problem with React Native versions below 0.71
// https://github.com/facebook/react-native/issues/35210
// TODO: remove this exclusiveContent section when we upgrade to React Native 0.71 (or above)
// copied from https://github.com/Scottish-Tech-Army/Volunteer-app/pull/101/commits/40a30310ee46194efbaf1c07aef8a0df70231eeb
filter {
includeGroup "com.facebook.react"
}
forRepository {
maven {
url "$rootDir/../node_modules/react-native/android"
}
}
}
}
}
I had the same issue. There is a new patch for react-native now so update it in your package.json.
Mine is
"react-native": "^0.70.3"
and I changed it to
"react-native": "^0.70.5"
which worked for me
The answer lies here depending on the version of your react native. Patches are available for RN version 0.63 and up
https://github.com/facebook/react-native/issues/35210
Tips:
Don't just update react-native package, do an npm install
Clean gradle before running the app
Only add the code below IF your react native version is < 0.63
def REACT_NATIVE_VERSION = new File(['node', '--print',"JSON.parse(require('fs').readFileSync(require.resolve('react-native/package.json'), 'utf-8')).version"].execute(null, rootDir).text.trim())
allprojects {
configurations.all {
resolutionStrategy {
// Remove this override in 0.65+, as a proper fix is included in react-native itself.
force "com.facebook.react:react-native:" + REACT_NATIVE_VERSION
}
}
}
While running react native app I am getting following error:
`
Task :app:mergeDebugNativeLibs FAILED
Deprecated Gradle features were used in this build, making it incompatible with Gradle 7.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/6.9.2/userguide/command_line_interface.html#sec:command_line_warnings
574 actionable tasks: 2 executed, 572 up-to-date
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:mergeDebugNativeLibs'.
A failure occurred while executing com.android.build.gradle.internal.tasks.MergeJavaResWorkAction
2 files found with path 'lib/armeabi-v7a/libfbjni.so' from inputs:
- C:\Users\nouman.gradle\caches\transforms-3\6ef14503de3c85fa1ab2aba364d580cc\transformed\jetified-react-native-0.71.0-rc.0-debug\jni
- C:\Users\nouman.gradle\caches\transforms-3\64faf76bb2f0142d731347d7bfff47d4\transformed\jetified-fbjni-0.3.0\jni
If you are using jniLibs and CMake IMPORTED targets, see
https://developer.android.com/r/tools/jniLibs-vs-imported-targets
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org
BUILD FAILED in 32s
error Failed to install the app. Make sure you have the Android development environment set up: https://reactnative.dev/docs/environment-setup.
Error: Command failed: gradlew.bat app:installDebug -PreactNativeDevServerPort=8081
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:mergeDebugNativeLibs'.
A failure occurred while executing com.android.build.gradle.internal.tasks.MergeJavaResWorkAction
2 files found with path 'lib/armeabi-v7a/libfbjni.so' from inputs:
- C:\Users\nouman.gradle\caches\transforms-3\6ef14503de3c85fa1ab2aba364d580cc\transformed\jetified-react-native-0.71.0-rc.0-debug\jni
- C:\Users\nouman.gradle\caches\transforms-3\64faf76bb2f0142d731347d7bfff47d4\transformed\jetified-fbjni-0.3.0\jni
If you are using jniLibs and CMake IMPORTED targets, see
https://developer.android.com/r/tools/jniLibs-vs-imported-targets
Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org
BUILD FAILED in 32s
at makeError (D:\BayQi-Customer-Mobile-App\node_modules\execa\index.js:174:9)
at D:\BayQi-Customer-Mobile-App\node_modules\execa\index.js:278:16
at processTicksAndRejections (node:internal/process/task_queues:96:5)
at async runOnAllDevices (D:\BayQi-Customer-Mobile-App\node_modules\react-native\node_modules\#react-native-community\cli-platform-android\build\commands\runAndroid\runOnAllDevices.js:94:5)
at async Command.handleAction (D:\BayQi-Customer-Mobile-App\node_modules\#react-native-community\cli\build\index.js:192:9)
info Run CLI with --verbose flag for more details.
`
I am trying to run my react native app in physical device but getting this error.
It was running okay but suddenly has stopped working
UPDATED ANSWER
📢 Patches for >= 0.63 We have prepared releases for all the main versions of react-native with an hotfix:
🛳 0.70.5: https://github.com/facebook/react-native/releases/tag/v0.70.5
🛳️ 0.69.7: https://github.com/facebook/react-native/releases/tag/v0.69.7
🛳 0.68.5: https://github.com/facebook/react-native/releases/tag/v0.68.5
🛳️ 0.67.5: https://github.com/facebook/react-native/releases/tag/v0.67.5
🛳️ 0.66.5: https://github.com/facebook/react-native/releases/tag/v0.66.5
🛳️ 0.65.3: https://github.com/facebook/react-native/releases/tag/v0.65.3
🛳️ 0.64.4: https://github.com/facebook/react-native/releases/tag/v0.64.4
🛳️ 0.63.5: https://github.com/facebook/react-native/releases/tag/v0.63.5
By updating to these patch versions, your Android build should start working again.
Source https://github.com/facebook/react-native/issues/35210
OLD ANSWER
Add this to your android/build.gradle,
def REACT_NATIVE_VERSION = new File(['node', '--print',"JSON.parse(require('fs').readFileSync(require.resolve('react-native/package.json'), 'utf-8')).version"].execute(null, rootDir).text.trim())
allprojects {
configurations.all {
resolutionStrategy {
force "com.facebook.react:react-native:" + REACT_NATIVE_VERSION
}
}
If that does not work for you (with the dynamic version), then hard code your version in:
PLEASE BE CAREFUL TO MOVE THIS VERSION WHEN YOU UPDATE REACT-NATIVE
allprojects {
configurations.all {
resolutionStrategy {
force 'com.facebook.react:react-native:<your version>'
}
}
repositories {
// ...
}
}
Check this for more updates https://github.com/facebook/react-native/issues/35204
add this to your app/build.gradle
android {
// yout existing code
packagingOptions {
pickFirst '**/libc++_shared.so'
pickFirst '**/libfbjni.so'
}
}
// Top-level build file where you can add configuration options common to all sub-projects/modules
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
// ...
}
allprojects {
repositories {
+ exclusiveContent {
+ // We get React Native's Android binaries exclusively through npm,
+ // from a local Maven repo inside node_modules/react-native/.
+ // (The use of exclusiveContent prevents looking elsewhere like Maven Central
+ // and potentially getting a wrong version.)
+ filter {
+ includeGroup "com.facebook.react"
+ }
+ forRepository {
+ maven {
+ url "$rootDir/../node_modules/react-native/android"
+ }
+ }
+ }
// ...
}
}
New patch release for react-native
https://github.com/facebook/react-native/issues/35210#:%7E:text=We%20have%20prepared%20releases%20for%20all%20the%20main%20versions%20of%20react%2Dnative%20with%20an%20hotfix%3A
just update your package.json with latest react-native version
This helped me to resolve the issue.
This is happening because all the templates reference the React Native dependency by range, like implementation com.facebook.react:react-native:+. Usually this dependency gets resolved from the local Maven repo in ./node_modules/react-native/android but, since it has been published to Maven Central, it's now grabbing the very latest RC.
You can resolve this problem by forcing the React Native dependency to the version you expect with something like this implementation com.facebook.react:react-native:0.68.2!! in your app's Gradle file. The !! is shorthand for restricting Gradle from upgrading if your project or its transitive dependencies depend on a newer version. AFAIK Maven Central is immutable and the published dependency can't removed so this might be the only solution.
File: android/app/build.gradle
dependencies {
implementation 'com.facebook.react:react-native:0.67.2!!'
}
Reference: https://github.com/facebook/react-native/issues/35204
Workaround: I have made the following changes & It is working:
In gradle-wrapper.properties file, change gradle version
distributionUrl=https\://services.gradle.org/distributions/gradle-6.9-all.zip
In project level build.gradle file, add following lines:
dependencies {
classpath("org.jetbrains.kotlin:kotlin-gradle-plugin:1.6.0")
}
allprojects {
repositories {
exclusiveContent {
// We get React Native's Android binaries exclusively through
npm,
// from a local Maven repo inside node_modules/react-native/.
// (The use of exclusiveContent prevents looking elsewhere like
Maven Central
// and potentially getting a wrong version.)
filter {
includeGroup "com.facebook.react"
}
forRepository {
maven {
url "$rootDir/../node_modules/react-native/android"
}
}
}
}
configurations.all {
resolutionStrategy {
force 'androidx.core:core:1.6.0'
force 'androidx.core:core-ktx:1.6.0'
}
}
In app level build.gradle, add these dependecies:
implementation 'androidx.core:core-ktx:1.6.0',
implementation 'androidx.core:core:1.6.0'
Add following lines inside the android>build.gradle file -
allprojects {
repositories {
...
exclusiveContent {
// We get React Native's Android binaries exclusively through npm,
// from a local Maven repo inside node_modules/react-native/.
// (The use of exclusiveContent prevents looking elsewhere like Maven Central
// and potentially getting a wrong version.)
filter {
includeGroup "com.facebook.react"
}
forRepository {
maven {
url "$rootDir/../node_modules/react-native/android"
}
}
}
}
This issue occurred from November 4th 2022. See the reference: https://github.com/facebook/react-native/issues/35210
I was trying to create a release apk file from Android but when I create a release apk with PNG image I'm getting Duplicate Resource error. Initially I thought this is happening because I made a mistake in the existing project but when I created a new project with a single Image component itself I'm getting the Duplicate Resource error. Here are the steps I followed
Create a app - react-native init demo
Create a assets folder in the project root folder.
Add a PNG image inside the assets folder.
Now implement the Image component with the above PNG image.
Now bundle it using the cmd
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/
Then generate release apk using Generate Signed APK from Android Studio.
This will throw the following error:
[drawable-mdpi-v4/assets_mario] /Users/jeffreyrajan/Tutorials/RN/errorCheck/android/app/src/main/res/drawable-mdpi/assets_mario.png [drawable-mdpi-v4/assets_mario] /Users/jeffreyrajan/Tutorials/RN/errorCheck/android/app/build/generated/res/react/release/drawable-mdpi-v4/assets_mario.png: Error: Duplicate resources
:app:mergeReleaseResources FAILED
FAILURE: Build failed with an exception.
* What went wrong:
Execution failed for task ':app:mergeReleaseResources'.
> [drawable-mdpi-v4/assets_mario] /Users/jeffreyrajan/Tutorials/RN/errorCheck/android/app/src/main/res/drawable-mdpi/assets_mario.png [drawable-mdpi-v4/assets_mario] /Users/jeffreyrajan/Tutorials/RN/errorCheck/android/app/build/generated/res/react/release/drawable-mdpi-v4/assets_mario.png: Error: Duplicate resources
* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
BUILD FAILED in 22s
Note: When you generate a release apk without any PNG image you will not get any error, it will create you the release apk.
Here are the other files code.
App.js
import React, {Component} from 'react';
import {Platform, StyleSheet, Image, View} from 'react-native';
export default class App extends Component {
render() {
return (
<View style={styles.container}>
<Image source={require('./assets/mario.png')} />
</View>
);
}
}
const styles = StyleSheet.create({
container: {
flex: 1
},
welcome: {
fontSize: 20,
textAlign: 'center',
margin: 10,
},
instructions: {
textAlign: 'center',
color: '#333333',
marginBottom: 5,
},
});
package.json
{
"name": "errorCheck",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
},
"dependencies": {
"react": "16.6.0-alpha.8af6728",
"react-native": "0.57.4"
},
"devDependencies": {
"babel-jest": "23.6.0",
"jest": "23.6.0",
"metro-react-native-babel-preset": "0.49.0",
"react-test-renderer": "16.6.0-alpha.8af6728"
},
"jest": {
"preset": "react-native"
}
}
Any solution for this?
Update:
Here are the other details
classpath 'com.android.tools.build:gradle:3.1.4'
ext {
buildToolsVersion = "27.0.3"
minSdkVersion = 16
compileSdkVersion = 27
targetSdkVersion = 26
supportLibVersion = "27.1.1"
}
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
Tried with Android Studio 3.0, 3.0.1, 3.1, 3.1.4 & 3.2
(UPDATED)
This solution works for me
rm -rf ./android/app/src/main/res/drawable-*
rm -rf ./android/app/src/main/res/raw
In my case, the build failed because there are duplicated resources in my Android project (in Android folder), these two lines are necessary to remove duplicated resources, that's all.
After trying a lot of solutions I found only Three solution is working. Here they are
Solution 1:
Clean the drawable folder from the terminal using Gradle. cd into the android folder, then run cmd ./gradlew clean
Solution 2:
After bundling delete the drawable folder from Android Studio. You could find this in android/app/src/main/res/drawable
Solution 3:
PLEASE DO NOT USE SOLUTION #2, AS PROPOSED BY THE ORIGINAL AUTHOR! All packages under node_modules are generated, and any changes you make will be lost when the react-native package is reinstalled / upgraded.
In this solution you no need to delete any drawable folder. Just add the following code in the react.gradle file which you could find under node_modules/react-native/react.gradle path
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
}
For reference I will add the full react.gradle file code here
import org.apache.tools.ant.taskdefs.condition.Os
def config = project.hasProperty("react") ? project.react : [];
def cliPath = config.cliPath ?: "node_modules/react-native/local-cli/cli.js"
def bundleAssetName = config.bundleAssetName ?: "index.android.bundle"
def entryFile = config.entryFile ?: "index.android.js"
def bundleCommand = config.bundleCommand ?: "bundle"
def reactRoot = file(config.root ?: "../../")
def inputExcludes = config.inputExcludes ?: ["android/**", "ios/**"]
def bundleConfig = config.bundleConfig ? "${reactRoot}/${config.bundleConfig}" : null ;
afterEvaluate {
android.applicationVariants.all { def variant ->
// Create variant and target names
def targetName = variant.name.capitalize()
def targetPath = variant.dirName
// React js bundle directories
def jsBundleDir = file("$buildDir/generated/assets/react/${targetPath}")
def resourcesDir = file("$buildDir/generated/res/react/${targetPath}")
def jsBundleFile = file("$jsBundleDir/$bundleAssetName")
// Additional node and packager commandline arguments
def nodeExecutableAndArgs = config.nodeExecutableAndArgs ?: ["node"]
def extraPackagerArgs = config.extraPackagerArgs ?: []
def currentBundleTask = tasks.create(
name: "bundle${targetName}JsAndAssets",
type: Exec) {
group = "react"
description = "bundle JS and assets for ${targetName}."
// Create dirs if they are not there (e.g. the "clean" task just ran)
doFirst {
jsBundleDir.deleteDir()
jsBundleDir.mkdirs()
resourcesDir.deleteDir()
resourcesDir.mkdirs()
}
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
}
// Set up inputs and outputs so gradle can cache the result
inputs.files fileTree(dir: reactRoot, excludes: inputExcludes)
outputs.dir jsBundleDir
outputs.dir resourcesDir
// Set up the call to the react-native cli
workingDir reactRoot
// Set up dev mode
def devEnabled = !(config."devDisabledIn${targetName}"
|| targetName.toLowerCase().contains("release"))
def extraArgs = extraPackagerArgs;
if (bundleConfig) {
extraArgs = extraArgs.clone()
extraArgs.add("--config");
extraArgs.add(bundleConfig);
}
if (Os.isFamily(Os.FAMILY_WINDOWS)) {
commandLine("cmd", "/c", *nodeExecutableAndArgs, cliPath, bundleCommand, "--platform", "android", "--dev", "${devEnabled}",
"--reset-cache", "--entry-file", entryFile, "--bundle-output", jsBundleFile, "--assets-dest", resourcesDir, *extraArgs)
} else {
commandLine(*nodeExecutableAndArgs, cliPath, bundleCommand, "--platform", "android", "--dev", "${devEnabled}",
"--reset-cache", "--entry-file", entryFile, "--bundle-output", jsBundleFile, "--assets-dest", resourcesDir, *extraArgs)
}
enabled config."bundleIn${targetName}" ||
config."bundleIn${variant.buildType.name.capitalize()}" ?:
targetName.toLowerCase().contains("release")
}
// Expose a minimal interface on the application variant and the task itself:
variant.ext.bundleJsAndAssets = currentBundleTask
currentBundleTask.ext.generatedResFolders = files(resourcesDir).builtBy(currentBundleTask)
currentBundleTask.ext.generatedAssetsFolders = files(jsBundleDir).builtBy(currentBundleTask)
// registerGeneratedResFolders for Android plugin 3.x
if (variant.respondsTo("registerGeneratedResFolders")) {
variant.registerGeneratedResFolders(currentBundleTask.generatedResFolders)
} else {
variant.registerResGeneratingTask(currentBundleTask)
}
variant.mergeResources.dependsOn(currentBundleTask)
// packageApplication for Android plugin 3.x
def packageTask = variant.hasProperty("packageApplication")
? variant.packageApplication
: tasks.findByName("package${targetName}")
def resourcesDirConfigValue = config."resourcesDir${targetName}"
if (resourcesDirConfigValue) {
def currentCopyResTask = tasks.create(
name: "copy${targetName}BundledResources",
type: Copy) {
group = "react"
description = "copy bundled resources into custom location for ${targetName}."
from resourcesDir
into file(resourcesDirConfigValue)
dependsOn(currentBundleTask)
enabled currentBundleTask.enabled
}
packageTask.dependsOn(currentCopyResTask)
}
def currentAssetsCopyTask = tasks.create(
name: "copy${targetName}BundledJs",
type: Copy) {
group = "react"
description = "copy bundled JS into ${targetName}."
if (config."jsBundleDir${targetName}") {
from jsBundleDir
into file(config."jsBundleDir${targetName}")
} else {
into ("$buildDir/intermediates")
into ("assets/${targetPath}") {
from jsBundleDir
}
// Workaround for Android Gradle Plugin 3.2+ new asset directory
into ("merged_assets/${targetPath}/merge${targetName}Assets/out") {
from jsBundleDir
}
}
// mergeAssets must run first, as it clears the intermediates directory
dependsOn(variant.mergeAssets)
enabled currentBundleTask.enabled
}
packageTask.dependsOn(currentAssetsCopyTask)
}
}
Credit:
ZeroCool00
mkchx
For generating debug apk
"debug-build": "react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/src/main/res/ && cd android && ./gradlew assembleDebug && cd .."
For generating release apk
"release-build": "react-native bundle --platform android --dev false --entry-file index.js --bundle-output android/app/src/main/assets/index.android.bundle --assets-dest android/app/build/intermediates/res/merged/release/ && rm -rf android/app/src/main/res/drawable-* && rm -rf android/app/src/main/res/raw/* && cd android && ./gradlew assembleRelease && cd .."
Works fine for my react-native >= 0.61.2 project by using the above code on my scripts section of package.json file.
The accepted answer will work, however it does not take into account that modifying a node package means that if you update your change will be lost (as well as being against best-practices, you should extend the module somehow).
This is originally from React-native android release error: duplicate resource
Create folder fixAndroid in the android folder of your project ({project-root}/android/fixAndroid).
Create file android-gradle-fix in the fixAndroid folder of your project ({project-root}/android/fixAndroid/android-gradle-fix).
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("${resourcesDir}/drawable-${resSuffix}")
if (originalDir.exists()) {
File destDir = file("${resourcesDir}/drawable-${resSuffix}-v4")
ant.move(file: originalDir, tofile: destDir)
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
}
// Set up inputs and outputs so gradle can cache the result
Create file android-release-fix.js in the fixAndroid folder you created:
const fs = require('fs')
try {
var curDir = __dirname
var rootDir = process.cwd()
var file = `${rootDir}/node_modules/react-native/react.gradle`
var dataFix = fs.readFileSync(`${curDir}/android-gradle-fix`, 'utf8')
var data = fs.readFileSync(file, 'utf8')
var doLast = "doLast \{"
if (data.indexOf(doLast) !== -1) {
throw "Already fixed."
}
var result = data.replace(/\/\/ Set up inputs and outputs so gradle can cache the result/g, dataFix);
fs.writeFileSync(file, result, 'utf8')
console.log('Android Gradle Fixed!')
} catch (error) {
console.error(error)
}
Add script to package.json scripts section:
"postinstall": "node ./android/fixAndroid/android-release-fix.js"
This will find and insert content of “android-gradle-fix” file into node_modules/react-native/react.gradle.
Run npm install from the root of your project.
Run rm -rf android/app/src/main/res/drawable-* from the root of your project.
Now you can bundle the release with either React Native at the console or Android Studio:
React Native command line
cd {project-root}/android
./gradlew/bundleRelease
Android Studio
Open folder android in Android Studio and build project.
Select Build/Generate signed APK to build release.
Delete drawable-xxx folders
Delete raw
inside src -> main -> res folder then
run this command in terminal:
react-native bundle --dev false --platform android --entry-file index.js --bundle-output ./android/app/src/main/assets/index.android.bundle --assets-dest ./android/app/src/main/res_temp
then generate signed apk using keystore, alias and passwords using terminal or android studio
who are facing the same issue in RN!
I think it's absolutely awful that this issue stands here for so long time already, but I want to share the way to solve it after investigation of different solutions.
Jeffrey Rajan is absolutely right about the possible solutions here https://stackoverflow.com/a/53260522/1611414
I think it's super bad to change react.gradle file in node_modules and it leads to many many different issues with the maintenance of this RN project. So I would recommend to chose the first option - to use bash command to remove that folder before running build.
I want to share what I've done in my project and maybe you can reuse the same approach:
In ./package.json:
scripts: {
"build": "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/
&& rm -rf ./android/app/src/main/res/drawable-mdpi/
&& rm -rf ./android/app/src/main/res/raw/",
"release": "yarn build && cd ./android && ./gradlew bundleRelease"
}
and the release is running by doing yarn release.
These lines are important:
&& rm -rf ./android/app/src/main/res/drawable-mdpi/
&& rm -rf ./android/app/src/main/res/raw/
they remove duplicated resources from the build step before bundleRelease is running. The solution is tested with RN 0.57, 0.58, 0.59 and 0.60
Enjoy!
for latest version of React-Native and gradle, you don't need to bundle your assets. Once you are done with the code, just cd into the android folder and run:
./gradlew assembleRelease
The assets are automatically bundled while the above command is been executed. The duplicate resources error shows up because you have explicitly bundled before and running the above command bundles again hence the error.
In my case, it worked after adding a few lines to Jaffrey's Answer
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
File originalDir = file("$buildDir/generated/res/react/release/raw");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/raw");
ant.move(file: originalDir, tofile: destDir);
}
}
tolotrasmile's answer worked for me.
I included it in my little bash script that I run whenever I want to build & install Android
cd "$PROJECT_DIRECTORY"
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
cd ..
rm -rf "$PROJECT_DIRECTORY"/android/app/src/main/res/drawable-*
rm -rf "$PROJECT_DIRECTORY"/android/app/src/main/res/raw
cd "$PROJECT_DIRECTORY"/android/
./gradlew clean
./gradlew assembleRelease
cd ../../
adb install -r "$PROJECT_DIRECTORY"/android/app/build/outputs/apk/release/app-release.apk
Try to use another directory for assets destination (for example res_temp).
react-native bundle --dev false --platform android --entry-file index.js --bundle-output ./android/app/src/main/assets/index.android.bundle --assets-dest ./android/app/src/main/res_temp
I am also adding res_temp in gitignore.
Tested in Gradle 6.0.1 and RN 0.62.2
was error with release build /android/app/src/main/res/raw/app.json:
[raw/app]
/android/app/build/generated/res/react/release/raw/app.json: Error: Duplicate resources
deleted /android/app/src/main/res/raw/app.json
then ran ./gradlew clean in android folder
and then ran ./gradlew bundleRelease
For me it was a cache issue. The following command worked for me
cd into android folder
Run ./gradlew clean
Solution.
I just clean gradlew and starts working no need to change anything in.
/node_modules/react-native/react.gradle
Steps
1) cd android && ./gradlew clean && cd ..
2) react-native run-android
"dependencies": {
"react": "16.11.0",
"react-native": "0.62.2",
}
Spent ages on this! None of the proposed solutions were an immediate fix for me.
So I moved out all the dirs that were getting mentioned in the "duplicate resource" error message:
mv ./android/app/src/main/res/drawabl* /tmp
mv ./android/app/src/main/res/raw /tmp
then I ran a
./gradlew clean
then I ran a build:
/gradlew bundleRelease
the build was giving me a couple of errors along the lines of 'could not find a specific file in a specific place', so for each of these files I found them in the tmp/drawable folders and copied them to the exact path that the error message said it expected them to be e.g (you'll have to customise this according to the error message you get):
cp /tmp/drawable-mdpi/launch_screen.png app/src/main/res/drawable/
then:
./gradlew clean
/gradlew bundleRelease
And it finally buily successfully
for me go to dir:
android/app/src/main/assets/fonts
check .ttf files you expect, delete .ttf of vector icons
I had also this problem and to solve it, I have deleted resource folders and used gradlew clean.
I ended up with this Windows cmd script for compiling my app:
#echo off
call 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
rmdir android\app\src\main\res\drawable-hdpi /s/q
rmdir android\app\src\main\res\drawable-mdpi /s/q
rmdir android\app\src\main\res\drawable-xhdpi /s/q
rmdir android\app\src\main\res\drawable-xxhdpi /s/q
rmdir android\app\src\main\res\drawable-xxxhdpi /s/q
rmdir android\app\src\main\res\raw /s/q
cd android
call gradlew clean
REM call gradlew assembleRelease
call gradlew bundle
cd ..
dir /o:d android\app\build\outputs\apk\release
dir /o:d android\app\build\outputs\bundle
My version react native is: 0.66.3 , I had fix trought commands:
rm -rf ./android/app/src/main/res/drawable-*
rm -rf ./android/app/src/main/res/raw
Then run :
./gradlew clean
Finally: Generate Signed Bundle from Android Studio and works.
Use com.android.tools.build:gradle:3.1.4 It should work. RN 0.57 has problem with building in 3.2
This question is a possible duplicate of:
React Native Error: Duplicate resources, assets coming in some screens and not coming in others in android release APK
If it still doesn't work try to use RN 0.57.2, I am using it and creating releases works very well with these deps:
"dependencies": {
"react": "16.5.0",
"react-native": "0.57.2",
.......
}
"devDependencies": {
"#babel/core": "^7.0.0",
"#babel/plugin-proposal-class-properties": "^7.0.0",
"#babel/plugin-proposal-decorators": "^7.0.0",
"#babel/plugin-proposal-do-expressions": "^7.0.0",
"#babel/plugin-proposal-export-default-from": "^7.0.0",
"#babel/plugin-proposal-export-namespace-from": "^7.0.0",
"#babel/plugin-proposal-function-bind": "^7.0.0",
"#babel/plugin-proposal-function-sent": "^7.0.0",
"#babel/plugin-proposal-json-strings": "^7.0.0",
"#babel/plugin-proposal-logical-assignment-operators": "^7.0.0",
"#babel/plugin-proposal-nullish-coalescing-operator": "^7.0.0",
"#babel/plugin-proposal-numeric-separator": "^7.0.0",
"#babel/plugin-proposal-object-rest-spread": "^7.0.0",
"#babel/plugin-proposal-optional-chaining": "^7.0.0",
"#babel/plugin-proposal-pipeline-operator": "^7.0.0",
"#babel/plugin-proposal-throw-expressions": "^7.0.0",
"#babel/plugin-syntax-dynamic-import": "^7.0.0",
"#babel/plugin-syntax-import-meta": "^7.0.0",
"#babel/plugin-syntax-object-rest-spread": "^7.0.0",
"#babel/plugin-transform-runtime": "^7.0.0",
"#babel/preset-env": "^7.0.0",
"#babel/preset-flow": "^7.0.0",
"#babel/register": "^7.0.0",
"babel-core": "^7.0.0-bridge.0",
"babel-preset-react-native-stage-0": "^1.0.1",
.....
}
Gradle deps:
classpath 'com.android.tools.build:gradle:3.1.4'
classpath "io.realm:realm-gradle-plugin:4.0.0"
App gradle
compileSdkVersion 27
buildToolsVersion "27.0.3"
defaultConfig {
applicationId "de.burda.buntede"
minSdkVersion 17
targetSdkVersion 27
Gradle wrapper props:
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
Remove the files you might have on:
android/app/src/main/res/drawable-mdpi/
android/app/src/main/res/drawable-xhdpi/
android/app/src/main/res/drawable-xxhdpi/
Run Build again, This fixed the issue for me.
So basically edit the /node_modules/react-native/react.gradle file
and add the doLast right after the doFirst block, manually.
doFirst { ... }
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
}
I am using react-native 0.63.2. I also faced this issue and tried editing react.gradle, deleted resources/drawable and all. But at last cleaning gradle and running the command gradlew assembleRelease worked.
I didn't run the react-native bundle command separately. gradlew assembleRelease is running the react-native bundle and building apk itself.
The solutions like patching the react.gradle file may work but they are just workarounds. The real solution lies in figuring out the problem.
If its only happening while creating release build then chances are you're bundling separately. If you're upgrading from older versions of react native which didn't have a react.gradle file you'd have to bundle separately and then do 'cd android && ./gradlew assembleRelease' but with the introduction of react.gradle the bundling process has now been taken care by the react.gradle file, so don't bundle separately just run 'cd android && ./gradlew clean && ./gradlew assembleRelease' to build the release apk.
If this happens in debug also then chances are some generated assets or all of the generated assets have been pushed and currently reside in your directory. So i would suggest just delete all of them from the respective directory and if they are tracked by git try adding them back one by one. We had some assets starting with src_assets_blahblah which we had to delete since they were already getting generated during the build process.
None of the suggested solutions works for me
In my case it was related to .gradle folder. Before getting this error i have moved the folder to another disk, but some files failed to copy to the destination folder.
I just cut the old folder and merge it with the destination folder.
In my case, raw directory was containing some duplicates. So, I have to add a different function for that as well, name of added function is moveFuncRaw below worked perfectly for me.
doLast {
// Address issue #22234 by moving generated resources into build dir so they are in one spot, not duplicated
def moveFuncRaw = { dirName ->
File originalDir = file("$buildDir/generated/res/react/release/${dirName}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/${dirName}");
ant.move(file: originalDir, tofile: destDir);
}
}
// Address issue #22234 by moving generated resources into build dir so they are in one spot, not duplicated
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
moveFuncRaw.curry("raw").call()
}
One more thing to realize that doLast do not gets called every time as there could be some conditions on it like in my case there were, so you have to call separately to get it executed.
If the above answers are not working and if the issue is similar to the below error
> Task :app:mergeReleaseResources FAILED
ERROR: [drawable-mdpi-v4/node_modules_reactnative_libraries_newappscreen_components_logofgdsfsdfsdfds]
/Users/emmsdan/Repo/untitledApp/android/app/src/main/res/drawable-mdpi/node_modules_reactnative_libraries_newappscreen_components_logofgdsfsdfsdfds.png
[drawable-mdpi-v4/node_modules_reactnative_libraries_newappscreen_components_logofgdsfsdfsdfds]
/Users/emmsdan/Repo/untitledApp/android/app/build/generated/res/react/release/drawable-mdpi/
node_modules_reactnative_libraries_newappscreen_components_logofgdsfsdfsdfds.png: Resource and asset merger: Duplicate resources
Not the most elegant solution but this worked for me.
Delete this
rm -rf rmnode_modules/react-native/Libraries/NewAppScreen
I had similar issues, even on a newly created react-native app.
Deleting NewAppScreen and everywhere it was called fixed it for me.
It's not needed to add any code in the react-native module.
By default, the app/build.gradle set the property bundleInRelease as true. This means that if you run the react native bundle before the build, you will get this error.
To fix this issue, make sure that your app/build.gradle has the following code:
project.ext.react = [
bundleInRelease: false
]
You can find more details in: https://github.com/react-native-community/cli/blob/master/docs/commands.md
Accepted answer's solution 1 will work but it will add some more things to your assets.
Solution 1:
Clean the drawable folder from the terminal using Gradle. cd into the android folder, then run cmd ./gradlew clean
This will solve the initial problem of old code rendering but will create another issue usually: the issue of duplicate resources.
Check your androids res folder there will be added additional assets in your mipmap filders and res folder, delete all the additional added assets from the folders and run the release version of app ad you will be good to go.
This issue comes after you run 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
So only thing you want to do is remove the resources files which builds with it.
If you use git,
stage index.android.bundle and discard other new resource files.
A slight addition: sometimes you end up with a "raw" in the resources folder. That has to go too.
So a slight modification to the existing react.gradle script:
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("drawable-ldpi").call()
moveFunc.curry("drawable-mdpi").call()
moveFunc.curry("drawable-hdpi").call()
moveFunc.curry("drawable-xhdpi").call()
moveFunc.curry("drawable-xxhdpi").call()
moveFunc.curry("drawable-xxxhdpi").call()
moveFunc.curry("raw").call()
}
By adding this is in /node_modules/react-native/react.gradle
After DoFirst Paste This Code
doLast {
def moveFunc = { resSuffix ->
File originalDir = file("$buildDir/generated/res/react/release/drawable-${resSuffix}");
if (originalDir.exists()) {
File destDir = file("$buildDir/../src/main/res/drawable-${resSuffix}");
ant.move(file: originalDir, tofile: destDir);
}
}
moveFunc.curry("ldpi").call()
moveFunc.curry("mdpi").call()
moveFunc.curry("hdpi").call()
moveFunc.curry("xhdpi").call()
moveFunc.curry("xxhdpi").call()
moveFunc.curry("xxxhdpi").call()
}