Amazon Cognito身份验证库导致gradle IOException（重复zip条目）

Question

自从我将CognitoAuth更新到V2.6.13之后，我就遇到了Gradle的编译问题。这只发生在发布版本中。

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'com.amazonaws:aws-android-sdk-cognitoauth:2.6.13'

我收到的错误如下：

警告：处理任务时出现异常java.io.ioException：无法写入[C:\javasdk\AndroidStudio\as_workspace\example.android\app\build\intermediates\transforms\proguard\tech\release\0.jar]（无法读取[C:\users\jeff.gradle\caches\transforms-1\files-1.1\aws-android-sdk-cognitoauth-2.6.13.aar\cc705c348189e750e6a133ffd448563c\jars\classes.jar（；；

从研究来看，我似乎需要排除一些东西，但我不知道是什么。我错过了什么？这是否更多的是一个proguard问题，因为它只会在发布版本中失败？

编辑

apply plugin: 'com.android.library'

// top-level build file to help synchronize library versions
ext {
    supportLib = "25.3.1"
    googleLib = "11.6.0"
    amazonLib = "2.6.3"
}

allprojects {
    repositories {
        maven { url 'https://maven.fabric.io/public' }
        maven { url 'https://zendesk.jfrog.io/zendesk/repo' }
        maven { url 'https://jitpack.io' }
        jcenter()
        google()
    }
}

android {
    compileSdkVersion 26
    buildToolsVersion '26.0.2'
    // construct version name
    def versionMajor = 2
    def versionMinor = 0
    def versionPatch = 0
    defaultConfig {
        minSdkVersion 16
        targetSdkVersion 26
        versionName "${versionMajor}.${versionMinor}.${versionPatch}"
        versionCode 1
    }
    buildTypes {
        debug {
            buildConfigField "String", "FEATURES", "\"Device Utilities, "Google Service APIs, TextToSpeech\""
            manifestPlaceholders = [build_version: "${versionMajor}.${versionMinor}.${versionPatch}"]
            // debuggable
            debuggable true
        }
        stage {
            buildConfigField "String", "FEATURES", "\"Device Utilities, "Google Service APIs, TextToSpeech\""
            manifestPlaceholders = [build_version: "${versionMajor}.${versionMinor}.${versionPatch}"]
            // debuggable
            debuggable true
        }
        release {
            buildConfigField "String", "FEATURES", "\"Device Utilities, "Google Service APIs, TextToSpeech\""
            manifestPlaceholders = [build_version: "${versionMajor}.${versionMinor}.${versionPatch}"]
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    dependencies {
        api files('libs/volley.jar')
        // okhttp for requests
        // gson library
        api 'com.google.code.gson:gson:2.8.0'
        // mixpanel
        api 'com.mixpanel.android:mixpanel-android:5.2.1'
        // google play services
        api "com.google.android.gms:play-services:${googleLib}"
        // android support libraries
        api 'com.android.support:multidex:1.0.2'
        api "com.android.support:support-annotations:${supportLib}"
        //noinspection GradleCompatible
        api "com.android.support:cardview-v7:${supportLib}"
        //noinspection GradleCompatible
        api "com.android.support:appcompat-v7:${supportLib}"
        //noinspection GradleCompatible
        api "com.android.support:recyclerview-v7:${supportLib}"
        //noinspection GradleCompatible
        api "com.android.support:design:${supportLib}"
        //noinspection GradleCompatible
        api "com.android.support:appcompat-v7:${supportLib}"
        //noinspection GradleCompatible
        api "com.android.support:customtabs:${supportLib}"
        // amazon libraries
        api "com.amazonaws:aws-android-sdk-cognito:${amazonLib}"
        api "com.amazonaws:aws-android-sdk-cognitoidentityprovider:${amazonLib}"
        api 'com.amazonaws:aws-android-sdk-cognitoauth:2.6.13'
        // unit testing dependencies
        testApi 'junit:junit:4.12'
        // set this dependency if you want to use Mockito
        testApi 'org.mockito:mockito-core:2.7.22'
        // set this dependency if you want to use Hamcrest matching
        androidTestApi 'org.hamcrest:hamcrest-library:1.3'
    }

}

Answer 1

当同时导入aws-android-sdk-cognitoidentityprovider和aws-android-sdk-cognitoauth（版本>=2.6.6和<=2.6.13时，会出现此问题。这是因为这两个库都包含一个通用的jar。因此，发布版本（gradle AssemblereRelease任务）将以例外情况失败。

这在V2.6.14中得到了修正，其中底层依赖关系被创建为一个独立的库，这两个库将依赖于该库。