这是一个非常奇怪的情况。我可以构建我的项目、清理和构建我的项目，甚至可以在具有 Debug模式的物理设备上运行。我还在 Google Analytics 网页上获得了我需要的所有数据。

可悲的是，Android Studio 没有生成发布版本，.apk 文件。我完全遵循了Add Analytics to Your Android App ，官方教程，也搜索了很多答案，但那个确切的问题仍然存在。

我的 build.gradle 看起来像这样:

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

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.0"

    defaultConfig {
        applicationId "com.comname.appname"
        minSdkVersion 11
        targetSdkVersion 23
        versionCode 18
        versionName "2.7"
    }
    buildTypes {
        release {
            minifyEnabled true
            zipAlignEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}


dependencies {
    compile fileTree(include: ['*.jar'], dir: 'libs')
    compile files('libs/achartengine-1.1.0.jar')
    compile files('libs/SalatCalculator.jar')
    compile 'com.android.support:appcompat-v7:23.0.0'
    compile 'com.android.support:support-v4:23.0.0'
    compile 'com.google.android.gms:play-services-analytics:7.8.0'
}

这是 Gradle 构建报告:

Information:Gradle tasks [:app:assembleRelease]
:app:preBuild UP-TO-DATE
:app:preReleaseBuild UP-TO-DATE
:app:checkReleaseManifest
:app:preDebugBuild UP-TO-DATE
:app:prepareComAndroidSupportAppcompatV72300Library UP-TO-DATE
:app:prepareComAndroidSupportSupportV42300Library UP-TO-DATE
:app:prepareComGoogleAndroidGmsPlayServicesAnalytics780Library UP-TO-DATE
:app:prepareComGoogleAndroidGmsPlayServicesBase780Library UP-TO-DATE
:app:prepareReleaseDependencies
:app:compileReleaseAidl
:app:compileReleaseRenderscript
:app:generateReleaseBuildConfig
:app:generateReleaseAssets UP-TO-DATE
:app:mergeReleaseAssets
:app:generateReleaseResValues UP-TO-DATE
:app:processReleaseGoogleServices
:app:generateReleaseResources
:app:mergeReleaseResources
:app:processReleaseManifest
:app:processReleaseResources
:app:generateReleaseSources
:app:processReleaseJavaRes UP-TO-DATE
:app:compileReleaseJavaWithJavac
Note: D:\D\AndroidStudio\AppName\app\src\main\java\com\comname\AppName\util\NotificationGenerator.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.
:app:compileReleaseNdk UP-TO-DATE
:app:compileReleaseSources
:app:proguardRelease
Warning:com.google.android.gms.analytics.internal.zzam: can't find referenced class org.apache.http.NameValuePair
Warning:com.google.android.gms.analytics.internal.zzam: can't find referenced class org.apache.http.client.utils.URLEncodedUtils
Warning:com.google.android.gms.analytics.internal.zzam: can't find referenced class org.apache.http.NameValuePair
Warning:com.google.android.gms.analytics.internal.zzj: can't find referenced class org.apache.http.NameValuePair
Warning:com.google.android.gms.analytics.internal.zzj: can't find referenced class org.apache.http.client.utils.URLEncodedUtils
Warning:com.google.android.gms.analytics.internal.zzj: can't find referenced class org.apache.http.NameValuePair
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.HttpEntity
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.HttpResponse
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.StatusLine
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.client.HttpClient
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.client.methods.HttpGet
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.conn.ClientConnectionManager
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.impl.client.DefaultHttpClient
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.params.BasicHttpParams
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.client.methods.HttpGet
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.impl.client.DefaultHttpClient
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.params.BasicHttpParams
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.HttpEntity
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.HttpResponse
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.StatusLine
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.client.HttpClient
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.conn.ClientConnectionManager
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.client.HttpClient
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.HttpResponse
Warning:com.google.android.gms.internal.zzqt: can't find referenced class org.apache.http.client.HttpClient
Warning:com.google.android.gms.tagmanager.zzby: can't find referenced class org.apache.http.impl.client.DefaultHttpClient
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.Header
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpEntity
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpEntityEnclosingRequest
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpHost
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpResponse
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.StatusLine
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.client.ClientProtocolException
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.client.HttpClient
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.message.BasicHttpEntityEnclosingRequest
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpHost
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.message.BasicHttpEntityEnclosingRequest
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpEntity
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpEntityEnclosingRequest
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpResponse
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.StatusLine
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.client.HttpClient
Warning:com.google.android.gms.tagmanager.zzcx: can't find referenced class org.apache.http.HttpEntityEnclosingRequest
Warning:there were 61 unresolved references to classes or interfaces.
         You may need to add missing library jars or update their versions.
         If your code works fine without the missing classes, you can suppress
         the warnings with '-dontwarn' options.
         (http://proguard.sourceforge.net/manual/troubleshooting.html#unresolvedclass)
Exception while processing task 
java.io.IOException: Please correct the above warnings first.
    at proguard.Initializer.execute(Initializer.java:473)
    at proguard.ProGuard.initialize(ProGuard.java:233)
    at proguard.ProGuard.execute(ProGuard.java:98)
    at proguard.gradle.ProGuardTask.proguard(ProGuardTask.java:1074)
    at com.android.build.gradle.tasks.AndroidProGuardTask.doMinification(AndroidProGuardTask.java:139)
    at com.android.build.gradle.tasks.AndroidProGuardTask$1.run(AndroidProGuardTask.java:115)
    at com.android.builder.tasks.Job.runTask(Job.java:48)
    at com.android.build.gradle.tasks.SimpleWorkQueue$EmptyThreadContext.runTask(SimpleWorkQueue.java:41)
    at com.android.builder.tasks.WorkQueue.run(WorkQueue.java:227)
    at java.lang.Thread.run(Thread.java:745)
:app:dexRelease
:app:validateExternalOverrideSigning
:app:packageRelease FAILED
Error:Execution failed for task ':app:packageRelease'.
> Unable to compute hash of D:\D\AndroidStudio\AppName\app\build\intermediates\classes-proguard\release\classes.jar

还有关于 注意:D:\D\AndroidStudio\AppName\app\src\main\java\com\comname\AppName\util\NotificationGenerator.java 使用或覆盖了一个已弃用的 API。,我已为此文件运行 Lint，它没有显示任何此类警告。

最佳答案

问题与混淆器相关，您仅在发布配置文件(minifyEnabled true)上激活了混淆器。

你有两个选择:

1. 禁用 Proguard 将此属性设置为 false。如果您要发布应用，确实​​不推荐使用此选项。

2. 将规则添加到 Proguard，以便与 Analytics 一起正常工作。此规则应添加到文件 proguard-rules.pro 中，这是一个示例:

   -keep class com.google.android.gms.** { *; }
   -dontwarn com.google.android.gms.**
   

有关 Proguard 的更多信息，请参阅 Android Developers Page和 official project page

希望对您有所帮助。

关于android - 添加 Google Analytics 后无法生成 APK，但在 Debug模式下工作正常，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/32409990/