java 无法获取提供程序 com.google.android.gms.measurement.AppMeasurementContentProvider

Unable to get provider com.google.android.gms.measurement.AppMeasurementContentProvider

提问by Giru Bhai

I tried to Set up GCM in my project as given in Set up a GCM Client App on Androidand to Set Up Google Play Servicesadded dependency

我尝试在我的项目中设置GCM，如在 Android上设置GCM 客户端应用程序和设置 Google Play 服务添加的依赖项中所述

  compile "com.google.android.gms:play-services-gcm:8.4.0"

to the dependency section of my application's build.gradlefile.

到我的应用程序的build.gradle文件的依赖项部分。

And In the root gradle file add classpath as given in sample project(Sample cloned from $ git clone https://github.com/googlesamples/google-services.git) as

并在根 gradle 文件中添加示例项目（从示例克隆的示例$ git clone https://github.com/googlesamples/google-services.git）中给出的类路径作为

dependencies {
    classpath 'com.android.tools.build:gradle:2.0.0-beta6'
    classpath 'com.google.gms:google-services:2.0.0-beta6'
}

It's building fine, but it crashes on launch with the following stack trace :

它构建良好，但在启动时崩溃并显示以下堆栈跟踪：

java.lang.RuntimeException: Unable to get provider com.google.android.gms.measurement.AppMeasurementContentProvider: java.lang.NullPointerException: null reference at android.app.ActivityThread.installProvider(ActivityThread.java:5156) at android.app.ActivityThread.installContentProviders(ActivityThread.java:4748) at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4688) at android.app.ActivityThread.-wrap1(ActivityThread.java) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:148) at android.app.ActivityThread.main(ActivityThread.java:5417) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) Caused by: java.lang.NullPointerException: null reference at com.google.android.gms.common.internal.zzx.zzy(Unknown Source) at com.google.android.gms.measurement.internal.zzt.zzaU(Unknown Source) at com.google.android.gms.measurement.AppMeasurementContentProvider.onCreate(Unknown Source) at android.content.ContentProvider.attachInfo(ContentProvider.java:1748) at android.content.ContentProvider.attachInfo(ContentProvider.java:1723) at android.app.ActivityThread.installProvider(ActivityThread.java:5153) at android.app.ActivityThread.installContentProviders(ActivityThread.java:4748)? at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4688)? at android.app.ActivityThread.-wrap1(ActivityThread.java)? at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)? at android.os.Handler.dispatchMessage(Handler.java:102)? at android.os.Looper.loop(Looper.java:148)? at android.app.ActivityThread.main(ActivityThread.java:5417)? at java.lang.reflect.Method.invoke(Native Method)? at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)? at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

1723) 在 android.app.ActivityThread.installProvider(ActivityThread.java:5153) 在 android.app.ActivityThread.installContentProviders(ActivityThread.java:4748)？在 android.app.ActivityThread.handleBindApplication(ActivityThread.java:4688)？在 android.app.ActivityThread.-wrap1(ActivityThread.java)？在 android.app.ActivityThread$H.handleMessage(ActivityThread.java:1405)？在 android.os.Handler.dispatchMessage(Handler.java: 102）？在 android.os.Looper.loop(Looper.java:148)？在 android.app.ActivityThread.main(ActivityThread.java:5417)？在 java.lang.reflect.Method.invoke(Native Method)？在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)？在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 主要（ActivityThread.java：5417）？在 java.lang.reflect.Method.invoke(Native Method)？在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)？在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616) 主要（ActivityThread.java：5417）？在 java.lang.reflect.Method.invoke(Native Method)？在 com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)？在 com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)

Also tried related stack questions:

还尝试了相关的堆栈问题：

1. Updating Play services from 8.1 to 8.3 with Proguard enabled
2. Error on some devices - couldn't find class 'com.google.android.gms.measurement.internal.zzz'

1. 在启用 Proguard 的情况下将 Play 服务从 8.1 更新到 8.3
2. 某些设备上的错误 - 找不到类“com.google.android.gms.measurement.internal.zzz”

As answered in 1st link tried classpath

正如第一个链接中所回答的，尝试了类路径

classpath 'com.google.gms:google-services:1.5.0'

and as answered in 2nd link,tried Multidex also with no success.

并在第二个链接中回答，尝试 Multidex 也没有成功。

Also tried for Application Measurementadding

还尝试了应用程序测量添加

<?xml version="1.0" encoding="utf-8"?>
<resources>
   <integer name="google_app_measurement_enable">0</integer>
</resources>

as suggested in Play Services Release notes.

正如Play 服务发行说明中所建议的那样。

Note : sample code running.

注意：示例代码正在运行。

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Update :

更新 ：

Interesting thing is that same error even if I add only dependency

有趣的是，即使我只添加依赖项，也会出现同样的错误

  compile "com.google.android.gms:play-services-gcm:8.4.0"

in my app gradle file(Note : Only one line added in Existing project).And there is no error after adding

在我的应用程序 gradle 文件中（注意：在现有项目中只添加了一行）。添加后没有错误

compile "com.google.android.gms:play-services-gcm:8.1.0"

i.e. the token works on 8.1.0.Interesting,isn't?

即令牌在8.1.0 上工作。有趣，不是吗？

回答by SBerg413

Did you remember to add the plugin to the endof your app-level build.gradle file? ...

你记得插件添加到年底您的应用程序级的build.gradle的文件？...

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

You specifically need to add it to the very endof the file.

特别需要将其添加到最末端的文件。

Take a look here for reference: https://github.com/googlesamples/google-services/blob/master/android/gcm/app/build.gradle

看看这里作为参考：https: //github.com/googlesamples/google-services/blob/master/android/gcm/app/build.gradle

There is also a bug report opened on this issue: Issue 193112

还有一个关于这个问题的错误报告：问题 193112

回答by Android Enthusiast

Try to change your classpath dependency, instead of 'classpath 'com.google.gms:google-services:2.0.0-beta6'', use classpath ' classpath 'com.google.gms:google-services:1.5.0''.

尝试更改您的类路径依赖项，而不是 ' classpath 'com.google.gms:google-services:2.0.0-beta6''，使用类路径 ' classpath 'com.google.gms:google-services:1.5.0'' .

Here is a related stack overflow ticket, you may check the solution offered by community:. It was stated that they already filed bug ticket and the said fix has been implemented in release 1.5.0 of the foot service plugin.

这是一个相关的 堆栈溢出票，您可以查看社区提供的解决方案：。据说他们已经提交了错误票，并且该修复已在足部服务插件的 1.5.0 版中实施。

回答by redochka

From Android studio menu go to:

从 Android Studio 菜单转到：

• Build → Clean Project

• Build → Rebuild Project

• Run the app. No more crash.

• 构建 → 清理项目

• 构建 → 重建项目

• 运行应用程序。没有更多的崩溃。

Note: I am using the latest version of play-services:

注意：我使用的是最新版本的播放服务：

compile 'com.google.android.gms:play-services:8.4.0'