我们有一个在 Unity 上开发的游戏，我们在游戏中使用了谷歌分析，游戏构建和运行顺利，没有任何错误

我们将 apk 上传到 Play Store 进行 Beta 测试，第一次运行该应用程序时它崩溃了，第二次它完美运行，并且这种情况仅发生在全新安装时，更新游戏的用户不会遇到此错误.

我们在 5 个具有不同 android 版本的不同设备上有相同的行为

我在 logcat 中发现了这个错误，我很熟悉这个错误，通常你会丢失一个库或其他东西，但该应用程序在构建时运行良好，只有全新安装不起作用!

我什至从 Play 商店下载了该应用程序，将 apk 拉到我的电脑上，然后使用 adb 再次安装了该应用程序，它没有崩溃!

错误日志如下:

java.lang.Error: FATAL EXCEPTION [main]
                                               Unity version     : 5.2.5f1
                                               Device model      : samsung GT-I9500
                                               Device fingerprint: samsung/ja3gxx/ja3g:5.0.1/LRX22C/I9500XXUHOH6:user/release-keys

                                               Caused by: java.lang.RuntimeException: Unable to instantiate receiver com.google.android.gms.analytics.CampaignTrackingReceiver: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.analytics.CampaignTrackingReceiver" on path: DexPathList[[zip file "/data/app/com.remalit.kammelna-1/base.apk"],nativeLibraryDirectories=[/data/app/com.remalit.kammelna-1/lib/arm, /vendor/lib, /system/lib]]
                                                   at android.app.ActivityThread.handleReceiver(ActivityThread.java:2974)
                                                   at android.app.ActivityThread.access$1800(ActivityThread.java:177)
                                                   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1525)
                                                   at android.os.Handler.dispatchMessage(Handler.java:102)
                                                   at android.os.Looper.loop(Looper.java:145)
                                                   at android.app.ActivityThread.main(ActivityThread.java:5942)
                                                   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:1400)
                                                   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195)
                                                Caused by: java.lang.ClassNotFoundException: Didn't find class "com.google.android.gms.analytics.CampaignTrackingReceiver" on path: DexPathList[[zip file "/data/app/com.remalit.kammelna-1/base.apk"],nativeLibraryDirectories=[/data/app/com.remalit.kammelna-1/lib/arm, /vendor/lib, /system/lib]]
                                                   at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
                                                   at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
                                                   at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
                                                   at android.app.ActivityThread.handleReceiver(ActivityThread.java:2969)
                                                   at android.app.ActivityThread.access$1800(ActivityThread.java:177) 
                                                   at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1525) 
                                                   at android.os.Handler.dispatchMessage(Handler.java:102) 
                                                   at android.os.Looper.loop(Looper.java:145) 
                                                   at android.app.ActivityThread.main(ActivityThread.java:5942) 
                                                   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:1400) 
                                                   at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1195) 
                                                Suppressed: java.lang.ClassNotFoundException: com.google.android.gms.analytics.CampaignTrackingReceiver
                                                   at java.lang.Class.classForName(Native Method)
                                                   at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
                                                   at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
                                                   at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
                                                        ... 11 more
                                                Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available

07-26 09:28:55.991 3166-29939/? E/android.os.Debug: ro.product_ship = true

最佳答案

我在将我的 android 项目从 Eclipse 迁移到 Android Studio 时遇到了类似的问题。对我来说，根本原因是尽管项目中包含了 Google Analytics 库，但该项目缺少 google services 库。

我遵循了 android studio 的 Google Analytics 设置并解决了问题:https://developers.google.com/analytics/devguides/collection/android/v4/

主要是这些步骤:

The Google Services plugin for Gradle parses configuration information from the google-services.json file. Add the plugin to your project by updating your top-level build.gradle and your app-level build.gradle files as follows:

Add the dependency to your project-level build.gradle:

classpath 'com.google.gms:google-services:3.0.0'

Add the plugin to the bottom of your app-level build.gradle:

apply plugin: 'com.google.gms.google-services'

Now, you need to add a dependency for Google Play Services. Inside your app's build.gradle add:

compile 'com.google.android.gms:play-services-analytics:9.2.0'

关于android - 无法实例化接收器仅首次运行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/38582620/