title: React Native app (release build) crashes on start, works fine in debug. Why?
body: <p>When I run app in debug mode, it works fine, but when i install release mode it crashes immediately after start. I didn't find a fix yet.</p>
  
  <p>Currently I am using Samsung J6 for the app.</p>
  
  <p>Here are the logs by <code>adb logcat *:E</code>:</p>
  
  <pre><code>03-30 14:03:08.718 32503 32556 E log     : error java.lang.ClassNotFoundException: Didn't find class "com.facebook.jni.NativeRunnable" on path: DexPathList[[zip file "/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk"],nativeLibraryDirectories=[/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/lib/arm, /data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
      03-30 14:03:08.720 32503 32556 E SoLoader: couldn't find DSO to load: libfbjni.so caused by: Didn't find class "com.facebook.jni.NativeRunnable" on path: DexPathList[[zip file "/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk"],nativeLibraryDirectories=[/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/lib/arm, /data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
      03-30 14:03:08.721 32503 32556 E AndroidRuntime: FATAL EXCEPTION: create_react_context
      03-30 14:03:08.721 32503 32556 E AndroidRuntime: Process: com.mindola, PID: 32503
      03-30 14:03:08.721 32503 32556 E AndroidRuntime: java.lang.UnsatisfiedLinkError: couldn't find DSO to load: libfbjni.so caused by: Didn't find class "com.facebook.jni.NativeRunnable" on path: DexPathList[[zip file "/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk"],nativeLibraryDirectories=[/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/lib/arm, /data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.soloader.SoLoader.b(Unknown Source:368)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.soloader.SoLoader.a(Unknown Source:106)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.soloader.SoLoader.a(Unknown Source:108)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.soloader.SoLoader.a(Unknown Source:1)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.soloader.l.a(Unknown Source:0)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.soloader.a.a.a(Unknown Source:10)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.jni.HybridData.&lt;clinit&gt;(Unknown Source:2)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.react.bridge.WritableNativeMap.initHybrid(Native Method)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.react.bridge.WritableNativeMap.&lt;init&gt;(Unknown Source:0)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at com.facebook.react.jscexecutor.a.create(Unknown Source:2)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at c.b.m.H.run(Unknown Source:58)
      03-30 14:03:08.721 32503 32556 E AndroidRuntime:        at java.lang.Thread.run(Thread.java:764)
      03-30 14:03:08.850  2956  3031 E Netd    : getNetworkForDns: getNetId from enterpriseCtrl is netid 0
      03-30 14:03:08.917  3297  3324 E WindowManager: RemoteException occurs on reporting focusChanged, w=Window{a61296f u0 com.mindola/com.mindola.MainActivity}
      03-30 14:03:08.917  3297  3324 E WindowManager: android.os.DeadObjectException
      03-30 14:03:08.917  3297  3324 E WindowManager:         at android.os.BinderProxy.transactNative(Native Method)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at android.os.BinderProxy.transact(Binder.java:1145)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at android.view.IWindow$Stub$Proxy.windowFocusChanged(IWindow.java:500)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at com.android.server.wm.WindowState.reportFocusChangedSerialized(WindowState.java:3966)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at com.android.server.wm.WindowManagerService$H.handleMessage(WindowManagerService.java:5497)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at android.os.Handler.dispatchMessage(Handler.java:106)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at android.os.Looper.loop(Looper.java:214)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at android.os.HandlerThread.run(HandlerThread.java:65)
      03-30 14:03:08.917  3297  3324 E WindowManager:         at com.android.server.ServiceThread.run(ServiceThread.java:44)
      03-30 14:03:08.930 32579 32579 E Zygote  : isWhitelistProcess - Process is Whitelisted
      03-30 14:03:08.933 32579 32579 E Zygote  : accessInfo : 1
      03-30 14:03:08.950  2956  3031 E FrameworkListener: read() failed (Connection reset by peer)
      03-30 14:03:08.952 32579 32579 E android.dqagen: Not starting debugger since process cannot load the jdwp agent.
      03-30 14:03:08.957 32590 32590 E Zygote  : isWhitelistProcess - Process is Whitelisted
      03-30 14:03:08.960 32590 32590 E Zygote  : accessInfo : 1
      03-30 14:03:08.962  3297 15116 E WindowManager: win=Window{a61296f u0 com.mindola/com.mindola.MainActivity EXITING} destroySurfaces: appStopped=false win.mWindowRemovalAllowed=true win.mRemoveOnExit=true win.mViewVisibility=0 caller=com.android.server.wm.AppWindowToken.destroySurfaces:888 com.android.server.wm.AppWindowToken.destroySurfaces:869 com.android.server.wm.WindowState.onExitAnimationDone:5460 com.android.server.wm.-$$Lambda$01bPtngJg5AqEoOWfW3rWfV7MH4.accept:2 java.util.ArrayList.forEach:1262 com.android.server.wm.AppWindowToken.onAnimationFinished:2422 com.android.server.wm.AppWindowToken.setVisibility:552
      03-30 14:03:08.969 32590 32590 E oid.sm.provide: Not starting debugger since process cannot load the jdwp agent.
      03-30 14:03:09.026  8108  8129 E SDHMS:SDHMS_UTIL_IO: e = /sys/class/input_booster/touchkey/time (Permission denied)
      03-30 14:03:09.026  8108  8129 E SDHMS:SDHMS_UTIL_IO: e = /sys/class/input_booster/touchkey/time (Permission denied)
      03-30 14:03:09.033 24346 24363 E PBSessionCacheImpl: sessionId[107076425850360534] not persisted.
      03-30 14:03:09.062  3297  4215 E WindowManager: win=Window{60cb2a2 u0 Splash Screen com.mindola EXITING} destroySurfaces: appStopped=false win.mWindowRemovalAllowed=true win.mRemoveOnExit=true win.mViewVisibility=0 caller=com.android.server.wm.AppWindowToken.destroySurfaces:888 com.android.server.wm.AppWindowToken.destroySurfaces:869 com.android.server.wm.WindowState.onExitAnimationDone:5460 com.android.server.wm.WindowStateAnimator.onAnimationFinished:319 com.android.server.wm.WindowState.onAnimationFinished:5882 com.android.server.wm.-$$Lambda$yVRF8YoeNdTa8GR1wDStVsHu8xM.run:2 com.android.server.wm.SurfaceAnimator.lambda$getFinishedCallback$0:100
      03-30 14:03:09.394 21699 30661 E WakeLock: GCM_HB_ALARM release without a matched acquire!
  </code></pre>
  
  <p>Here is my <code>android/build.gradle</code>:</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:3.4.2")
          classpath("com.google.gms:google-services:4.2.0")
          classpath("io.fabric.tools:gradle:1.28.1")
  
          // 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 my <code>app/build.gradle</code>:</p>
  
  <pre><code>apply plugin: "com.android.application"
  apply plugin: 'io.fabric'
  
  crashlytics {
    enableNdk true
  }
  
  def useIntlJsc = false
  
  import com.android.build.OutputFile
  
  
  
  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 = true
  
  /**
   * 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);
  
  android {
      compileSdkVersion rootProject.ext.compileSdkVersion
  
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
  
      defaultConfig {
          applicationId "com.mindola"
          minSdkVersion rootProject.ext.minSdkVersion
          targetSdkVersion rootProject.ext.targetSdkVersion
          versionCode 13
          versionName "1.3"
          multiDexEnabled true
      }
      splits {
          abi {
              reset()
              enable enableSeparateBuildPerCPUArchitecture
              universalApk false  // If true, also generate a universal APK
              include "armeabi-v7a", "x86", "arm64-v8a", "x86_64"
          }
      }
      signingConfigs {
          debug {
              storeFile file('debug.keystore')
              storePassword 'android'
              keyAlias 'androiddebugkey'
              keyPassword 'android'
          }
          release {
              if (project.hasProperty('MYAPP_UPLOAD_STORE_FILE')) {
                  storeFile file(MYAPP_UPLOAD_STORE_FILE)
                  storePassword MYAPP_UPLOAD_STORE_PASSWORD
                  keyAlias MYAPP_UPLOAD_KEY_ALIAS
                  keyPassword MYAPP_UPLOAD_KEY_PASSWORD
              }
          }
      }
      buildTypes {
          debug {
              signingConfig signingConfigs.debug
          }
          release {
              // Caution! In production, you need to generate your own keystore file.
              // see https://facebook.github.io/react-native/docs/signed-apk-android.
              signingConfig signingConfigs.release
              minifyEnabled enableProguardInReleaseBuilds
              proguardFiles getDefaultProguardFile("proguard-android.txt"), "proguard-rules.pro"
          }
      }
      // 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
              }
  
          }
      }
  
      dexOptions {
          javaMaxHeapSize "4g"
      }
  
  
  }
  
  dependencies {
      implementation project(':react-native-vector-icons')
      implementation fileTree(dir: "libs", include: ["*.jar"])
      implementation "com.facebook.react:react-native:+"  // From node_modules
      implementation 'com.google.android.gms:play-services-ads:18.3.0'
      compile 'com.android.support:multidex:1.0.3'
  
      if (enableHermes) {
          def hermesPath = "../../node_modules/hermes-engine/android/";
          debugImplementation files(hermesPath + "hermes-debug.aar")
          releaseImplementation files(hermesPath + "hermes-release.aar")
      } else {
          implementation jscFlavor
      }
  
      if (useIntlJsc) {
          implementation 'org.webkit:android-jsc-intl:+'
      } else {
          implementation 'org.webkit:android-jsc:+'
      }
  
  }
  
  // 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 from: file("../../node_modules/@react-native-community/cli-platform-android/native_modules.gradle");
  
  // icons
  project.ext.vectoricons = [
      iconFontNames: [ 'FontAwesome5_Regular.ttf', 'FontAwesome5_Solid.ttf', 'FontAwesome.ttf' ] // Name of the font files you want to copy
  ]
  
  apply from: "../../node_modules/react-native-vector-icons/fonts.gradle"
  
  applyNativeModulesAppBuildGradle(project)
  
  apply plugin: 'com.google.gms.google-services'
  </code></pre>
  
  <p>In Firebase Crashlytics, i get this issue:</p>
  
  <pre><code>???
  com.facebook.soloader.SoLoader.b
  
  [Stack Trace]
  Fatal Exception: java.lang.UnsatisfiedLinkError
  couldn't find DSO to load: libfbjni.so caused by: Didn't find class "com.facebook.jni.NativeRunnable" on path: DexPathList[[zip file "/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk"],nativeLibraryDirectories=[/data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/lib/arm, /data/app/com.mindola-KM7-U7S64fvp4Oow2Wfasw==/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
  </code></pre>
  
  <p>and</p>
  
  <pre><code>    ???
          com.facebook.soloader.SoLoader.b
  
          [Stack Trace]
          Fatal Exception: java.lang.UnsatisfiedLinkError
  couldn't find DSO to load: libhermes.so
  </code></pre>
  
  <p>I tried a few workarounds already after searching through similar questions, but none of them worked for me.</p>