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I have updated React Native to 0.60-RC2, migrated to AndroidX using the Android Studio refractor and used the jetifier mentioned here:
https://github.com/react-native-community/discussions-and-proposals/issues/129
After doing this, I get the error
library "libjsc.so" not found
when running
react-native run-android
. i get the same error when running a release APK.
The stacktrace is:
06-24 15:55:01.823 8579 8656 E SoLoader: Error when loading lib: dlopen failed: library "libjsc.so" not found lib hash: 83f1717c1dc187d9f252a9f1fc66d430 search path is /data/app/com.jtv.testapp-4hvCKbqEmbyyOPykuQhm4Q==/lib/arm
06-24 15:55:01.823 8579 8656 E SoLoader: couldn't find DSO to load: libjscexecutor.so caused by: dlopen failed: library "libjsc.so" not found
06-24 15:55:01.825 8579 8656 E AndroidRuntime: FATAL EXCEPTION: create_react_context
06-24 15:55:01.825 8579 8656 E AndroidRuntime: Process: com.jtv.testapp, PID: 8579
06-24 15:55:01.825 8579 8656 E AndroidRuntime: java.lang.UnsatisfiedLinkError: couldn't find DSO to load: libjscexecutor.so caused by: dlopen failed: library "libjsc.so" not found
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.soloader.SoLoader.doLoadLibraryBySoName(SoLoader.java:738)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.soloader.SoLoader.loadLibraryBySoName(SoLoader.java:591)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.soloader.SoLoader.loadLibrary(SoLoader.java:529)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.soloader.SoLoader.loadLibrary(SoLoader.java:484)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.react.jscexecutor.JSCExecutor.<clinit>(JSCExecutor.java:19)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.react.jscexecutor.JSCExecutorFactory.create(JSCExecutorFactory.java:29)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at com.facebook.react.ReactInstanceManager$5.run(ReactInstanceManager.java:949)
06-24 15:55:01.825 8579 8656 E AndroidRuntime: at java.lang.Thread.run(Thread.java:764)
My package.json is:
"name": "TestApp",
"version": "0.0.1",
"private": true,
"scripts": {
"start": "node node_modules/react-native/local-cli/cli.js start",
"test": "jest"
"dependencies": {
"@react-native-community/async-storage": "^1.2.0",
"@react-native-community/blur": "^3.3.1",
"@react-native-community/netinfo": "^1.2.3",
"@react-native-community/slider": "^1.0.4",
"axios": "^0.18.0",
"jetifier": "^1.4.0",
"native-base": "^2.10.0",
"prop-types": "^15.6.2",
"qs": "^6.6.0",
"react": "^16.8.6",
"react-native": "^0.60.0-rc.2",
"react-native-appsee": "^2.6.21",
"react-native-device-info": "^0.24.3",
"react-native-dialog": "^5.5.0",
"react-native-draggable-flatlist": "^1.1.7",
"react-native-elements": "^0.19.1",
"react-native-email": "^1.0.2",
"react-native-fast-image": "^5.1.2",
"react-native-gesture-handler": "^1.0.12",
"react-native-iap": "^2.4.0",
"react-native-image-picker": "^0.28.0",
"react-native-iphone-x-helper": "^1.2.0",
"react-native-keyboard-aware-scroll-view": "^0.8.0",
"react-native-kochava-tracker": "^1.1.0",
"react-native-linear-gradient": "^2.5.3",
"react-native-material-dropdown": "^0.11.1",
"react-native-modal": "^9.0.0",
"react-native-orientation": "^3.1.3",
"react-native-scrollable-tab-view": "^0.10.0",
"react-native-snap-carousel": "^3.7.5",
"react-native-super-grid": "^2.4.4",
"react-native-tab-view": "^1.3.1",
"react-native-underline-tabbar": "^1.3.6",
"react-native-vector-icons": "^6.1.0",
"react-native-video": "^4.3.1",
"react-native-webview": "^5.12.0",
"react-navigation": "^3.0.9",
"react-navigation-backhandler": "^1.2.0",
"react-redux": "^6.0.1",
"redux": "^4.0.1",
"redux-logger": "^3.0.6",
"redux-thunk": "^2.3.0"
"devDependencies": {
"@babel/core": "^7.4.0",
"@babel/runtime": "^7.4.2",
"@react-native-community/eslint-config": "^0.0.3",
"babel-jest": "^24.5.0",
"babel-plugin-transform-remove-console": "^6.9.4",
"eslint": "^5.15.3",
"eslint-config-airbnb": "^17.1.0",
"eslint-plugin-import": "^2.16.0",
"eslint-plugin-jsx-a11y": "^6.2.1",
"eslint-plugin-react": "^7.12.4",
"eslint-plugin-react-hooks": "^1.5.1",
"jest": "^24.5.0",
"metro-react-native-babel-preset": "^0.53.1",
"react-devtools-core": "^3.6.0",
"react-test-renderer": "^16.8.6",
"remote-redux-devtools": "^0.5.16"
"jest": {
"preset": "react-native"
My build.gradle is:
apply plugin: "com.android.application"
import com.android.build.OutputFile
project.ext.react = [
entryFile: "index.js"
apply from: "../../node_modules/react-native/react.gradle"
def enableSeparateBuildPerCPUArchitecture = false
def enableProguardInReleaseBuilds = false
project.ext.vectoricons = [
iconFontNames: [ 'MaterialIcons.ttf', 'FontAwesome.ttf', 'MaterialCommunityIcons.ttf' ]
apply from: "../../node_modules/react-native-vector-icons/fonts.gradle"
android {
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig {
applicationId "com.jtv.testapp"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
versionCode 29
versionName "0.0.1"
multiDexEnabled true
renderscriptTargetApi 29
renderscriptSupportModeEnabled true
ndk {
abiFilters "arm64-v8a", "x86_64","armeabi-v7a", "x86"
packagingOptions {
pickFirst 'lib/x86_64/libjsc.so'
pickFirst 'lib/arm64-v8a/libjsc.so'
exclude "lib/arm64-v8a/libimagepipeline.so"
exclude "lib/arm64-v8a/librealm-jni.so"
signingConfigs {
release {
if (project.hasProperty('RELEASE_STORE_FILE')) {
storeFile file(RELEASE_STORE_FILE)
storePassword RELEASE_STORE_PASSWORD
keyAlias RELEASE_KEY_ALIAS
keyPassword RELEASE_KEY_PASSWORD
splits {
abi {
reset()
enable enableSeparateBuildPerCPUArchitecture
universalApk false // If true, also generate a universal APK
include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
buildTypes {
release {
minifyEnabled enableProguardInReleaseBuilds
proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
signingConfig signingConfigs.release
// applicationVariants are e.g. debug, release
applicationVariants.all { variant ->
variant.outputs.each { output ->
def versionCodes = ["armeabi-v7a":1, "x86":2, "arm64-v8a": 3, "x86_64": 4]
def abi = output.getFilter(OutputFile.ABI)
if (abi != null) { // null for the universal-debug, universal-release variants
output.versionCodeOverride =
versionCodes.get(abi) * 1048576 + defaultConfig.versionCode
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
dependencies {
implementation project(':react-native-webview')
implementation project(':react-native-jtv-comic-reader')
//implementation project(':@react-native-community_slider')
implementation project(':@react-native-community_blur')
implementation project(':@react-native-community_async-storage')
implementation project(':@react-native-community_netinfo')
implementation project(':react-native-appsee')
// implementation project(':react-native-tune-sdk')
implementation project(':react-native-iap')
implementation project(':react-native-gesture-handler')
implementation project(':react-native-video')
implementation project(':react-native-vector-icons')
implementation project(':react-native-orientation')
implementation project(':react-native-linear-gradient')
implementation project(':react-native-kochava-tracker')
// implementation project(':react-native-flurry-analytics')
implementation project(':react-native-device-info')
// implementation project(':react-native-fbsdk')
implementation project(':react-native-fast-image')
implementation project(':react-native-image-picker')
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'androidx.appcompat:appcompat:1.0.2'
implementation "com.facebook.react:react-native:+" // From node_modules
implementation 'com.facebook.fresco:fresco:1.13.0'
implementation 'com.facebook.fresco:animated-gif:1.13.0'
implementation 'androidx.mediarouter:mediarouter:1.0.0'
implementation 'com.google.ads.interactivemedia.v3:interactivemedia:3.11.2'
implementation 'com.google.android.gms:play-services-ads:18.0.0'
implementation 'com.google.android.gms:play-services-ads-identifier:17.0.0'
implementation 'androidx.multidex:multidex:2.0.1'
implementation 'com.google.android.gms:play-services-ads-identifier:17.0.0'
implementation 'com.android.installreferrer:installreferrer:1.0'
implementation 'com.google.android.gms:play-services-location:17.0.0'
implementation 'com.facebook.android:facebook-android-sdk:4.36.1'
implementation 'com.swrve.sdk.android:swrve-firebase:6.0.1'
implementation 'com.google.firebase:firebase-core:17.0.0'
implementation 'com.google.firebase:firebase-messaging:19.0.0'
implementation 'androidx.mediarouter:mediarouter:1.0.0'
implementation 'com.google.android.gms:play-services-cast:17.0.0'
implementation 'com.googlecode.android-query:android-query:0.25.9'
implementation 'com.google.android.gms:play-services-cast-framework:17.0.0'
// Run this once to be able to run the application with BUCK
// puts all compile dependencies into folder libs for BUCK to use
task copyDownloadableDepsToLibs(type: Copy) {
from configurations.compile
into 'libs'
apply plugin: 'com.google.gms.google-services'
What is the libjsc.so file and how do I solve this error?
implementation 'org.webkit:android-jsc-intl:+'
} else {
implementation 'org.webkit:android-jsc:+'
–
–
–
–
–
I had this issue too. I needed to update the jscFlavor variable inside the build.gradle file from this:
def jscFlavor = 'org.webkit:android-jsc:+'
To this:
def jscFlavor = 'org.webkit:android-jsc-intl:+'
Cheers.
What solved for me was change build.gradle updating packagingOptions to:
packagingOptions {
pickFirst 'lib/x86/libc++_shared.so'
pickFirst 'lib/x86/libjsc.so'
pickFirst 'lib/x86_64/libjsc.so'
pickFirst 'lib/arm64-v8a/libjsc.so'
pickFirst 'lib/arm64-v8a/libc++_shared.so'
pickFirst 'lib/x86_64/libc++_shared.so'
pickFirst 'lib/armeabi-v7a/libc++_shared.so'
pickFirst 'lib/armeabi-v7a/libjsc.so'
–
–
I encountered a slight variation of this bug, where I had added a third buildType to my gradle config, 'releaseStaging'
The fix in this instance was to add the following line to dependencies in app/build.gradle
releaseStagingImplementation files(hermesPath + "hermes-release.aar")
–
Okay ! In the recent versions of react native till today this issue is occurring and is being reported in the crashlytics that you integrate within the app or you can see it in the logs.
This issue only comes when you have Hermes engine enabled.
Here is my fix for this I was facing this issue, in my case Hermes was needed so, I managed to fix this "libjsc.so" not found by installing the jsc-android package from npm. Here is the link.
Please NOTE : Refer to the docs of this package for proper installation as per your react native version
clean gradle and re run the entire app this issue will be gone.
In my case, This error was related with react-native-screen and adding following
following two lines to dependencies section in android/app/build.gradle fixed the issue for me
implementation 'androidx.appcompat:appcompat:1.1.0-rc01'
implementation 'androidx.swiperefreshlayout:swiperefreshlayout:1.1.0-alpha02'
Source:Check out this Github answer
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