Crashlytics Fabric : Failed to execute task

Question

I've been having an issue and I don't know how to fix it.

My project use crashlytics, but it's always crash and not sent report. I have a TimeoutException:

08-25 03:04:31.876    2856-2856/connectivit.app E/Fabric﹕ Failed to execute task. java.util.concurrent.TimeoutException         at java.util.concurrent.FutureTask.get(FutureTask.java:176)         at com.crashlytics.android.core.CrashlyticsExecutorServiceWrapper.executeSyncLoggingException(CrashlyticsExecutorServiceWrapper.java:44)         at com.crashlytics.android.core.CrashlyticsUncaughtExceptionHandler.uncaughtException(CrashlyticsUncaughtExceptionHandler.java:275)         at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:693)         at java.lang.ThreadGroup.uncaughtException(ThreadGroup.java:690) --------- beginning of crash 08-25 03:04:31.876    2856-2856/connectivit.app E/AndroidRuntime﹕ FATAL EXCEPTION: main Process: connectivit.app, PID: 2856 java.lang.RuntimeException: Unable to start activity ComponentInfo{connectivit.app/connectivit.app.Activity.Main.MainActivity}: java.lang.RuntimeException: This is a crash         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2298)         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)         at android.app.ActivityThread.access$800(ActivityThread.java:144)         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)         at android.os.Handler.dispatchMessage(Handler.java:102)         at android.os.Looper.loop(Looper.java:135)         at android.app.ActivityThread.main(ActivityThread.java:5221)         at java.lang.reflect.Method.invoke(Native Method)         at java.lang.reflect.Method.invoke(Method.java:372)         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694)  Caused by: java.lang.RuntimeException: This is a crash         at connectivit.app.Activity.Main.MainActivity.initTabs(MainActivity.java:117)         at connectivit.app.Activity.Main.MainActivity.onCreate(MainActivity.java:57)         at android.app.Activity.performCreate(Activity.java:5933)         at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1105)         at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2251)         at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2360)         at android.app.ActivityThread.access$800(ActivityThread.java:144)         at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1278)         at android.os.Handler.dispatchMessage(Handler.java:102)         at android.os.Looper.loop(Looper.java:135)         at android.app.ActivityThread.main(ActivityThread.java:5221)         at java.lang.reflect.Method.invoke(Native Method)         at java.lang.reflect.Method.invoke(Method.java:372)         at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:899)         at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:694) 

EDIT

My build.gradle file :

buildscript {     repositories {         maven { url 'https://maven.fabric.io/public' }     }      dependencies {         classpath 'io.fabric.tools:gradle:1.+'     } } apply plugin: 'com.android.application' apply plugin: 'io.fabric'  repositories {     maven { url "https://jitpack.io" }     maven { url 'https://maven.fabric.io/public' } }  android {     signingConfigs {         release {             keyAlias 'android.keystore'             storeFile file('/Users/jordan/android.keystore.jks')             storePassword ""             keyPassword ""         }         config {             keyAlias 'androiddebugkey'             keyPassword 'android'             storeFile file('/Users/jordan/.android/debug.keystore')             storePassword 'android'         }     }     compileSdkVersion 23     buildToolsVersion '23'     defaultConfig {         applicationId “com.test"         minSdkVersion 14         targetSdkVersion 23         versionCode 12         versionName '1'          // Enabling multidex support.         multiDexEnabled true     }      buildTypes {         debug {             versionNameSuffix "-DEBUG"         }         release {             minifyEnabled true             zipAlignEnabled true              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'             signingConfig signingConfigs.release         }     }     packagingOptions {         exclude 'META-INF/ASL2.0'         exclude 'META-INF/LICENSE'         exclude 'META-INF/NOTICE'     }     lintOptions {         // set to true to turn off analysis progress reporting by lint         quiet false         // if true, stop the gradle build if errors are found         abortOnError false         // if true, only report errors         ignoreWarnings true     }     productFlavors {     } }  dependencies {     //--- Android     compile 'com.android.support:design:23.0.0'     compile 'com.android.support:appcompat-v7:23.0.0'     compile 'com.android.support:multidex:1.0.0'      //--- Fabric     compile('com.crashlytics.sdk.android:crashlytics:2.4.0@aar') {         transitive = true;     } } 

Crashlytics initialization :

public class MyApplication extends MultiDexApplication {   @Override public void onCreate() {     super.onCreate();      Fabric.with(this, new Crashlytics());      if (!BuildConfig.DEBUG) {         Log.d("Ez", "Release mode. Crashlytics enable");         //Fabric.with(this, new Crashlytics());     } else {         Log.d("Ez", "Debug mode. Crashlytics disable");     }      throw new RuntimeException("This is a crash");     } } 

Answer 1

This issue drove me crazy still in 2019, but I think I finally figured out, what did the exception cause.

I followed all the setup instructions given in the official firebase documentation, but when I tested my solution I didn't get any report on Firebase Crashlytics admin, because of the TimeoutException.

The reason was in my case, that I triggered the Exception in my main activity's onCreate() or onResume() methods. When I let my app at the first start just run without exception, then later I started to get the reports without any error, so I think it's important, that at the first start the app shouldn't throw any exception in the hook methods.

Hope my experience helped.