title: React native 0.61.5 Crashlytics missing libhermes.so: SoLoader.java com.facebook.soloader.SoLoader.assertInitialized
body: <p>I am building a <strong>React-Native</strong> application, everything worked fine until I decided to upgrade from version 0.59.x to <strong>v 0.61.5</strong>.</p>
  
  <p>When I try to release my app in the play store, I've got a lot of crashes reported by <a href="https://invertase.io/oss/react-native-firebase/v6/crashlytics/quick-start" rel="noreferrer">Firebase Crashlytics</a> (<strong>v 6.2.0</strong>) -- <em>even though my version is just available for internal testing</em>, so it must be a <a href="https://support.google.com/googleplay/android-developer/answer/7002270?hl=en" rel="noreferrer">pre-launch report</a> triggered by playstore -- and it's exactly the same error for the exact same device => <strong>LGE Nexus 5X with android 6.0.1</strong>.</p>
  
  <pre><code>Fatal Exception: java.lang.UnsatisfiedLinkError: couldn't find DSO to load: libhermes.so
         at com.facebook.soloader.SoLoader.assertInitialized(SoLoader.java)
         at com.facebook.soloader.SoLoader.assertInitialized(SoLoader.java)
         at com.facebook.soloader.SoLoader.assertInitialized(SoLoader.java)
         at com.facebook.soloader.SoLoader.assertInitialized(SoLoader.java)
         at com.facebook.hermes.reactexecutor.HermesExecutor.&lt;clinit&gt;(HermesExecutor.java)
         at com.facebook.hermes.reactexecutor.HermesExecutorFactory.create(HermesExecutorFactory.java)
         at com.facebook.react.ReactInstanceManager$5.run(ReactInstanceManager.java)
         at java.lang.Thread.run(Thread.java:818)
  </code></pre>
  
  <p>To solved this problem, I tried to submit multiple version with slightly different android configuration (for instance with and without hermes enable) but it doesn't change the end result.</p>
  
  <p>Here is my <strong>build.gradle</strong> file :</p>
  
  <pre><code>apply plugin: "com.android.application"
  apply plugin: "io.fabric"
  
  import com.android.build.OutputFile
  
  /**
   * The react.gradle file registers a task for each build variant (e.g. bundleDebugJsAndAssets
   * and bundleReleaseJsAndAssets).
   * These basically call `react-native bundle` with the correct arguments during the Android build
   * cycle. By default, bundleDebugJsAndAssets is skipped, as in debug/dev mode we prefer to load the
   * bundle directly from the development server. Below you can see all the possible configurations
   * and their defaults. If you decide to add a configuration block, make sure to add it before the
   * `apply from: "../../node_modules/react-native/react.gradle"` line.
   *
   * project.ext.react = [
   *   // the name of the generated asset file containing your JS bundle
   *   bundleAssetName: "index.android.bundle",
   *
   *   // the entry file for bundle generation
   *   entryFile: "index.android.js",
   *
    *   // https://facebook.github.io/react-native/docs/performance#enable-the-ram-format
   *   bundleCommand: "ram-bundle",
   *
   *   // whether to bundle JS and assets in debug mode
   *   bundleInDebug: false,
   *
   *   // whether to bundle JS and assets in release mode
   *   bundleInRelease: true,
   *
   *   // whether to bundle JS and assets in another build variant (if configured).
   *   // See http://tools.android.com/tech-docs/new-build-system/user-guide#TOC-Build-Variants
   *   // The configuration property can be in the following formats
   *   //         'bundleIn${productFlavor}${buildType}'
   *   //         'bundleIn${buildType}'
   *   // bundleInFreeDebug: true,
   *   // bundleInPaidRelease: true,
   *   // bundleInBeta: true,
   *
   *   // whether to disable dev mode in custom build variants (by default only disabled in release)
   *   // for example: to disable dev mode in the staging build type (if configured)
   *   devDisabledInStaging: true,
   *   // The configuration property can be in the following formats
   *   //         'devDisabledIn${productFlavor}${buildType}'
   *   //         'devDisabledIn${buildType}'
   *
   *   // the root of your project, i.e. where "package.json" lives
   *   root: "../../",
   *
   *   // where to put the JS bundle asset in debug mode
   *   jsBundleDirDebug: "$buildDir/intermediates/assets/debug",
   *
   *   // where to put the JS bundle asset in release mode
   *   jsBundleDirRelease: "$buildDir/intermediates/assets/release",
   *
   *   // where to put drawable resources / React Native assets, e.g. the ones you use via
   *   // require('./image.png')), in debug mode
   *   resourcesDirDebug: "$buildDir/intermediates/res/merged/debug",
   *
   *   // where to put drawable resources / React Native assets, e.g. the ones you use via
   *   // require('./image.png')), in release mode
   *   resourcesDirRelease: "$buildDir/intermediates/res/merged/release",
   *
   *   // by default the gradle tasks are skipped if none of the JS files or assets change; this means
   *   // that we don't look at files in android/ or ios/ to determine whether the tasks are up to
   *   // date; if you have any other folders that you want to ignore for performance reasons (gradle
   *   // indexes the entire tree), add them here. Alternatively, if you have JS files in android/
   *   // for example, you might want to remove it from here.
   *   inputExcludes: ["android/**", "ios/**"],
   *
   *   // override which node gets called and with what additional arguments
   *   nodeExecutableAndArgs: ["node"],
   *
   *   // supply additional arguments to the packager
   *   extraPackagerArgs: []
   * ]
   */
  
  project.ext.react = [
      entryFile: "index.js",
      enableHermes: false,  // clean and rebuild if changing
  ]
  
  apply from: "../../node_modules/react-native/react.gradle"
  
  /**
   * Set this to true to create two separate APKs instead of one:
   *   - An APK that only works on ARM devices
   *   - An APK that only works on x86 devices
   * The advantage is the size of the APK is reduced by about 4MB.
   * Upload all the APKs to the Play Store and people will download
   * the correct one based on the CPU architecture of their device.
   */
  def enableSeparateBuildPerCPUArchitecture = false
  
  /**
   * Run Proguard to shrink the Java bytecode in release builds.
   */
  def enableProguardInReleaseBuilds = true
  
  /**
   * The preferred build flavor of JavaScriptCore.
   *
   * For example, to use the international variant, you can use:
   * `def jscFlavor = 'org.webkit:android-jsc-intl:+'`
   *
   * The international variant includes ICU i18n library and necessary data
   * allowing to use e.g. `Date.toLocaleString` and `String.localeCompare` that
   * give correct results when using with locales other than en-US.  Note that
   * this variant is about 6MiB larger per architecture than default.
   */
  def jscFlavor = 'org.webkit:android-jsc:+'
  /**
   * Whether to enable the Hermes VM.
   *
   * This should be set on project.ext.react and mirrored here.  If it is not set
   * on project.ext.react, JavaScript will not be compiled to Hermes Bytecode
   * and the benefits of using Hermes will therefore be sharply reduced.
   */
  def enableHermes = project.ext.react.get("enableHermes", false);
  
  def _applicationId = System.getenv("GRADLE_APP_IDENTIFIER") ?: 'com.clothparency.debug'
  def appName = System.getenv("GRADLE_APP_NAME") ?: 'Clear Fashion debug'
  def _versionCode = (System.getenv("ANDROID_VERSION_CODE") ?: "1") as Integer
  def _versionName = System.getenv("ANDROID_VERSION_NAME") ?: "1.0.0"
  
  android {
      compileSdkVersion rootProject.ext.compileSdkVersion
  
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
  
      packagingOptions {
        exclude 'META-INF/androidx.exifinterface_exifinterface.version'
      }
  
      defaultConfig {
          applicationId _applicationId
          minSdkVersion rootProject.ext.minSdkVersion
          targetSdkVersion rootProject.ext.targetSdkVersion
          versionCode _versionCode
          versionName _versionName
          missingDimensionStrategy 'react-native-camera', 'mlkit'
          multiDexEnabled true
      }
      dexOptions {
          javaMaxHeapSize "4g"
      }
      splits {
          abi {
              reset()
              enable enableSeparateBuildPerCPUArchitecture
              universalApk false  // If true, also generate a universal APK
              include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
          }
      }
      signingConfigs {
          release {
              storeFile file(String.valueOf(System.getenv("GRADLE_KEYSTORE")))
              storePassword System.getenv("GRADLE_KEYSTORE_PASSWORD")
              keyAlias System.getenv("GRADLE_KEYSTORE_ALIAS")
              keyPassword System.getenv("GRADLE_KEYSTORE_ALIAS_PASSWORD")
          }
      }
      buildTypes {
          debug {
              resValue "string", "app_name", appName
              debuggable true
              proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
          }
          release {
              resValue "string", "app_name", appName
              minifyEnabled enableProguardInReleaseBuilds
              proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
              signingConfig signingConfigs.release
          }
      }
      // applicationVariants are e.g. debug, release
      applicationVariants.all { variant -&gt;
          variant.outputs.each { output -&gt;
              // For each separate APK per architecture, set a unique version code as described here:
              // https://developer.android.com/studio/build/configure-apk-splits.html
              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
              }
          }
      }
  }
  
  configurations.all {
       resolutionStrategy {
         force "com.facebook.soloader:soloader:0.8.1"
       }
  }
  
  dependencies {
      implementation fileTree(dir: "libs", include: ["*.jar"])
      implementation "com.facebook.react:react-native:+"  // From node_modules
  
      if (enableHermes) {
        def hermesPath = "../../node_modules/hermes-engine/android/";
        debugImplementation files(hermesPath + "hermes-debug.aar")
        releaseImplementation files(hermesPath + "hermes-release.aar")
      } else {
        implementation jscFlavor
      }
  
      implementation 'com.android.support:multidex:1.0.3'
  }
  
  // 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'
  
  apply from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle"); applyNativeModulesAppBuildGradle(project)
  </code></pre>
  
  <p>Also, my root <strong>build.gradle</strong></p>
  
  <pre><code>// Top-level build file where you can add configuration options common to all sub-projects/modules.
  
  buildscript {
      ext {
          buildToolsVersion = "28.0.3"
          minSdkVersion = 16
          compileSdkVersion = 28
          targetSdkVersion = 28
      }
      repositories {
          google()
          jcenter()
          maven {
              url 'https://maven.fabric.io/public'
          }
      }
      dependencies {
          classpath('com.android.tools.build:gradle:3.5.3')
          classpath 'com.google.gms:google-services:4.2.0' 
  
          classpath 'io.fabric.tools:gradle:1.+'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          mavenLocal()
          maven {
              // All of React Native (JS, Obj-C sources, Android binaries) is installed from npm
              url("$rootDir/../node_modules/react-native/android")
          }
          maven {
              // Android JSC is installed from npm
              url("$rootDir/../node_modules/jsc-android/dist")
          }
  
          google()
          jcenter()
          maven { url 'https://jitpack.io' }
      }
  }
  </code></pre>
  
  <p>Here is dependencies of my <strong>package.json</strong>:</p>
  
  <pre><code>  "dependencies": {
      "@react-native-community/async-storage": "^1.6.1",
      "@react-native-firebase/analytics": "^6.2.0",
      "@react-native-firebase/app": "^6.2.0",
      "@react-native-firebase/auth": "^6.2.0",
      "@react-native-firebase/crashlytics": "^6.2.0",
      "@react-native-firebase/perf": "^6.2.0",
      "axios": "^0.18.0",
      "fast-levenshtein": "^2.0.6",
      "formik": "^1.5.7",
      "i18n-js": "^3.2.2",
      "jetifier": "^1.6.5",
      "lodash": "^4.17.11",
      "react": "16.9.0",
      "react-native": "0.61.5",
      "react-native-camera": "^3.13.1",
      "react-native-dialog": "^5.6.0",
      "react-native-fbsdk": "^1.1.1",
      "react-native-formik": "^1.7.5",
      "react-native-gesture-handler": "^1.5.2",
      "react-native-localize": "^1.1.2",
      "react-native-reanimated": "^1.4.0",
      "react-native-screens": "^1.0.0-alpha.23",
      "react-native-swiper": "^1.6.0-rc.3",
      "react-native-tab-view": "^2.11.0",
      "react-navigation": "3.13.0",
      "react-navigation-tabs": "^2.6.2",
      "react-persist": "^1.0.2",
      "react-redux": "^7.0.3",
      "redux": "^4.0.1",
      "redux-devtools-extension": "^2.13.8",
      "redux-persist": "^6.0.0",
      "redux-thunk": "^2.3.0",
      "reselect": "^4.0.0",
      "unorm": "^1.6.0",
      "yup": "^0.27.0"
    }
  </code></pre>
  
  <p>I found this github issues talking about this topic :</p>
  
  <ul>
  <li><a href="https://github.com/facebook/react-native/issues/25923" rel="noreferrer">https://github.com/facebook/react-native/issues/25923</a></li>
  <li><a href="https://github.com/facebook/hermes/issues/78" rel="noreferrer">https://github.com/facebook/hermes/issues/78</a></li>
  </ul>
  
  <p>But no solutions described here were worked for me.</p>
  
  <p>Also found this thread on stackoverflow: <a href="https://stackoverflow.com/questions/57036317/react-native-java-lang-unsatisfiedlinkerror-couldnt-find-dso-to-load-libherm">React-Native :java.lang.UnsatisfiedLinkError: couldn&#39;t find DSO to load: libhermes.so</a> : the error seems to be slightly different from mine, but solutions didn't work.</p>
  
  <p>I'm afraid to release my new version into production and I'm totally stuck. Need fast help :)</p>