生成签名的Apk时出现ClassCastException

Question

我的等级依赖是

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
}

使用这些应用程序依赖

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"
}

在创建发行版签名的Apk时发生此错误，我该如何解决？无法解决这些错误，同时删除渐变缓存，并使Android Studio无效并重新启动。

java.lang.ClassCastException：com.android.tools.r8.s.b.C不能转换为com.android.tools.r8.s.b.b

com.android.tools.r8.CompilationFailedException：编译未能完成，位置：Lorg/readium/r2/traver/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-r2streamerkotlin1.0.42runtime.jar

com.android.tools.r8.s.b.C不能转换为com.android.tools.r8.s.b.b

Gradle的依赖缓存可能已损坏(这种情况有时发生在网络连接超时之后。(

重新下载依赖项并同步项目(需要网络(

Gradle构建进程(守护进程(的状态可能已损坏

Answer 1

这是中跟踪的R8问题http://issuetracker.google.com/175132220.

Answer 2

buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
ndk {
debugSymbolLevel 'SYMBOL_TABLE'
}
}
}

设置minimyEnabled false解决了我的问题。转到build.gradle并更改