React Native Duplicate resources

Question

After upgrading to React Native 0.57 i am facing an issue when genrating APK in react-native-router-flux.when executing the .\\gradlew assembleRelease i get below error :-<

Answer 1

It is easy! just delete drawable and raw folder under app/src/main/res

Answer 2

react.gradle automatically build your javascript and copy any resources imported inside your javascript to the build folder so make sure to NOT call react-native bundle manually and delete any files or folder as src/main/res/drawable-* and src/main/assets/*.bundle and have the following changes into your app/bundle.gradle

project.ext.react = [
  entryFile      : "index.js", // or index.android.js
  bundleInRelease: true,
  bundleInDebug: true
]

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

Note: please notice that some react-native versions have a problem with the local cli.js please make sure to upgrade to a newer version or try adding the following config

 project.ext.react = [
    // ...
    cliPath: "node_modules/react-native/local-cli/cli.js"
 ]

Answer 3

There is another way to resolve this issue. For me, just adding below code in my project's android/build.gradle worked:

subprojects {
    afterEvaluate {project ->
        if (project.hasProperty("android")) {
            android {
                compileSdkVersion 27
                buildToolsVersion "27.0.2"
            }
        }
    }
}

Answer 4

I am using:

"react": "^16.5.2",
"react-native": "0.57.1",

I modified my app's build.gradle like this

ext.react = [
        entryFile: "index.js",
        bundleInRelease       : true,
        resourcesDirRelease   : "src/main/res"
]
apply plugin: 'com.android.application'
import com.android.build.OutputFile

//using custom react gradle here to get around https://stackoverflow.com/questions/52464842/react-native-duplicate-resources
apply from: "../react.gradle"
//apply from: "../../node_modules/react-native/react.gradle"
apply from: "../../node_modules/react-native-code-push/android/codepush.gradle"

and then my custom react.gradle looks like this

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"

// because elvis operator
def elvisFile(thing) {
    return thing ? file(thing) : null;
}

def reactRoot = elvisFile(config.root) ?: file("../../")
def inputExcludes = config.inputExcludes ?: ["android/**", "ios/**"]
def bundleConfig = config.bundleConfig ? "${reactRoot}/${config.bundleConfig}" : null ;

void runBefore(String dependentTaskName, Task task) {
    Task dependentTask = tasks.findByPath(dependentTaskName);
    if (dependentTask != null) {
        dependentTask.dependsOn task
    }
}

afterEvaluate {
    def isAndroidLibrary = plugins.hasPlugin("com.android.library")
    // Grab all build types and product flavors
    def buildTypes = android.buildTypes.collect { type -> type.name }
    def productFlavors = android.productFlavors.collect { flavor -> flavor.name }

    // When no product flavors defined, use empty
    if (!productFlavors) productFlavors.add('')

    productFlavors.each { productFlavorName ->
        buildTypes.each { buildTypeName ->
            // Create variant and target names
            def flavorNameCapitalized = "${productFlavorName.capitalize()}"
            def buildNameCapitalized = "${buildTypeName.capitalize()}"
            def targetName = "${flavorNameCapitalized}${buildNameCapitalized}"
            def targetPath = productFlavorName ?
                    "${productFlavorName}/${buildTypeName}" :
                    "${buildTypeName}"

            // React js bundle directories
            def jsBundleDirConfigName = "jsBundleDir${targetName}"
            def jsBundleDir = elvisFile(config."$jsBundleDirConfigName") ?:
                    file("$buildDir/intermediates/assets/${targetPath}")

            def resourcesDirConfigName = "resourcesDir${targetName}"
            def resourcesDir = elvisFile(config."${resourcesDirConfigName}") ?:
                    file("$buildDir/intermediates/res/merged/${targetPath}")
            def jsBundleFile = file("$jsBundleDir/$bundleAssetName")

            // Bundle task name for variant
            def bundleJsAndAssetsTaskName = "bundle${targetName}JsAndAssets"

            // Additional node and packager commandline arguments
            def nodeExecutableAndArgs = config.nodeExecutableAndArgs ?: ["node"]
            def extraPackagerArgs = config.extraPackagerArgs ?: []

            def currentBundleTask = tasks.create(
                    name: bundleJsAndAssetsTaskName,
                    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.mkdirs()
                    resourcesDir.mkdirs()
                }

                // 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${targetName}" ||
                        config."bundleIn${buildTypeName.capitalize()}" ?:
                        targetName.toLowerCase().contains("release")

            }

            // Hook bundle${productFlavor}${buildType}JsAndAssets into the android build process
            currentBundleTask.dependsOn("merge${targetName}Resources")
            currentBundleTask.dependsOn("merge${targetName}Assets")

            runBefore("process${flavorNameCapitalized}Armeabi-v7a${buildNameCapitalized}Resources", currentBundleTask)
            runBefore("process${flavorNameCapitalized}X86${buildNameCapitalized}Resources", currentBundleTask)
            runBefore("processUniversal${targetName}Resources", currentBundleTask)
            runBefore("process${targetName}Resources", currentBundleTask)
            runBefore("dataBindingProcessLayouts${targetName}", currentBundleTask)
        }
    }
}

Answer 5

This worked for me:

rm -rf ./android/app/src/main/res/raw

In my project, build failed because there is a duplicated resources in my Android project. This line is necessary to remove duplicated resources.

Answer 6

You can try to clean catch memory and reinstall node modules

watchman watch-del-all
rm -rf node_modules && npm install
rm -fr $TMPDIR/react-*
npm cache clean
npm start -- --reset-cache

It's work for me.