Java ClassCastException在生成时签署了Apk

我的梯度依赖性是

     repositories {
        google()
        mavenCentral()
//        maven { url "http://maven.ghostscript.com" }
        maven { url 'https://jitpack.io' }
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:4.1.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }

使用这些应用依赖项

     buildTypes {
        release {
            shrinkResources true
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }


    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
        exclude 'META-INF/NOTICE'
        exclude 'META-INF/NOTICE.txt'
        exclude 'META-INF/LICENSE'
        exclude 'META-INF/LICENSE.txt'
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
}

dependencies {
    implementation fileTree(dir: "libs", include: ["*.jar"])
    implementation 'androidx.appcompat:appcompat:1.2.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.0.4'
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation 'androidx.core:core-ktx:1.3.2'
    implementation 'androidx.recyclerview:recyclerview:1.1.0'
    //implementation files('libs/aspose-slides-20.6-android.via.java.jar')
    androidTestImplementation 'androidx.test.ext:junit:1.1.2'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
    implementation 'com.google.android.material:material:1.2.1'
    implementation 'com.github.bumptech.glide:glide:4.11.0'
    annotationProcessor 'com.github.bumptech.glide:compiler:4.11.0'
    implementation 'commons-io:commons-io:20030203.000550'
    implementation "com.pdfview:pdfview-android:1.0.0"


    //implementation 'com.android.support:multidex:1.0.3'
    // https://github.com/googlesamples/easypermissions
//    implementation 'pub.devrel:easypermissions:1.1.0'
    implementation ('com.github.junrar:junrar:7.4.0') {
        ['org.apache.commons','commons-logging'].each {
            exclude group: "$it"
        }
    }

    implementation 'io.reactivex.rxjava3:rxandroid:3.0.0'
    // Because RxAndroid releases are few and far between, it is recommended you also
    // explicitly depend on RxJava's latest version for bug fixes and new features.
    // (see https://github.com/ReactiveX/RxJava/releases for latest 3.x.x version)
    implementation 'io.reactivex.rxjava3:rxjava:3.0.8'

//    implementation files('libs/itsrts_pptviewer.jar')
    implementation 'com.agrawalsuneet.androidlibs:dotsloader:1.4'
    implementation 'com.google.android.gms:play-services-ads:19.6.0'


    implementation 'org.apache.commons:commons-lang3:3.11'
    implementation files('libs/jxl.jar')
    implementation files('libs/aspose-words-17.2.0-android.jar')
    implementation "com.folioreader:folioreader:0.5.4"

}

创建发布签名Apk时发生此错误，如何解决？删除gradle缓存并使Android Studio无效并重新启动时，无法解决这些错误

java.lang.ClassCastException:com.android.tools.r8.s.b.C不能强制转换为com.android.tools.r8.s.b.b

com.android.tools.r8.compiledFailedException:编译未能完成，位置：Lorg/readium/r2/streamer/parser/epub/OPFParser；parseSpine（Lorg/readium/r2/shared/parser/xml/Node；Lorg/readium/r2/shared/Publication；）V，来源：C:\Users\Asif Malik.gradle\caches\transforms2\files2.1\202fad4fee5b15436e55e2114f613e17\jetified-r2streamerkotlin1.0.42运行时。jar:org/readium/r2/streamer/parser/epub/OPFParser.class

com.android.tools.r8.s.b.C不能强制转换为com.android.tools.r8.s.b.b

Gradle的依赖项缓存可能已损坏（这有时会在网络连接超时后发生。）

重新下载依赖项和同步项目（需要网络）

Gradle生成进程（守护进程）的状态可能已损坏

---

这是跟踪到的R8问题。

**我已找到此问题的解决方案**删除{shrinkResources true minifyEnabled true}并添加**`{signingConfig signingConfigs.debug useProguard true minifyEnabled false}**对我来说，它工作正常此解决方案工作正常删除已创建签名apkAsif上的所有错误，关闭缩小（

minifyEnabled false

）显然是消除您看到的

ClassCastException

的一种方法，就像在R8编译中发生的那样。如果可能的话，您是否可以在上打开一个问题，提供有关Android Studio版本的更多信息，您可以在其中看到此问题？@sgjesse yes我解决此问题我使用链接中的“useProguard true minifyEnabled false”：此问题已在r8版本2.1.87中修复。遗憾的是，它没有与Android Studio 4.1.3捆绑在一起，所以除非新版本发布，否则您可以通过显式地将其添加到build.gradle中来使用变通方法。