Android API 24<与java一起崩溃。lang.NoClassDefFoundError:com。谷歌。常见的基础CharMatcher

Question

我的应用程序每次启动都会崩溃：java.lang.NoClassDefFoundError: com.google.common.base.CharMatcher。这只发生在运行低于安卓 API 24的设备上。我尝试过修改Gradle版本和插件，以及包含com.google.guava依赖项，但没有成功。以下是完整的堆栈跟踪：

java.lang.NoClassDefFoundError: com.google.common.base.CharMatcher
    at com.google.common.base.Splitter.on(Splitter.java:127)
    at io.grpc.internal.GrpcUtil.<clinit>(GrpcUtil.java:197)
    at io.grpc.internal.AbstractManagedChannelImplBuilder.<clinit>(AbstractManagedChannelImplBuilder.java:90)
    at io.grpc.okhttp.OkHttpChannelProvider.builderForTarget(OkHttpChannelProvider.java:46)
    at io.grpc.okhttp.OkHttpChannelProvider.builderForTarget(OkHttpChannelProvider.java:26)
    at io.grpc.ManagedChannelBuilder.forTarget(ManagedChannelBuilder.java:76)
    at com.google.firebase.firestore.remote.GrpcCallProvider.initChannel(GrpcCallProvider.java:113)
    at com.google.firebase.firestore.remote.GrpcCallProvider.lambda$initChannelTask$6(GrpcCallProvider.java:256)
    at com.google.firebase.firestore.remote.GrpcCallProvider$$Lambda$5.call(GrpcCallProvider.java)
    at com.google.安卓.gms.tasks.zzy.run(com.google.安卓.gms:play-services-tasks@@17.1.0:2)
    at com.google.firebase.firestore.util.ThrottledForwardingExecutor.lambda$execute$0(ThrottledForwardingExecutor.java:54)
    at com.google.firebase.firestore.util.ThrottledForwardingExecutor$$Lambda$1.run(ThrottledForwardingExecutor.java)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
    at java.lang.Thread.run(Thread.java:818)

我也经常遇到这样的例外情况：

W/System.err: io.reactivex.exceptions.UndeliverableException: java.lang.NoClassDefFoundError: io.grpc.okhttp.OkHttpChannelBuilder
        at io.reactivex.plugins.RxJavaPlugins.onError(RxJavaPlugins.java:367)
        at io.reactivex.internal.schedulers.ScheduledRunnable.run(ScheduledRunnable.java:69)
        at io.reactivex.internal.schedulers.ScheduledRunnable.call(ScheduledRunnable.java:57)
        at java.util.concurrent.FutureTask.run(FutureTask.java:237)
        at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:269)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1113)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:588)
        at java.lang.Thread.run(Thread.java:818)
    Caused by: java.lang.NoClassDefFoundError: io.grpc.okhttp.OkHttpChannelBuilder

我的项目级gradle文件如下所示：

buildscript {
repositories {
    google()
    jcenter()
}
dependencies {
    classpath 'com.google.gms:google-services:4.3.3'
    classpath 'com.安卓.tools.build:gradle:4.0.2'
    classpath "安卓x.navigation:navigation-safe-args-gradle-plugin:2.3.0"
    classpath 'com.google.firebase:firebase-crashlytics-gradle:2.1.1'
    classpath 'com.google.firebase:perf-plugin:1.3.1'  // Performance Monitoring plugin
}
}

allprojects {
    repositories {
        google()
        jcenter()
        maven { url "https://jitpack.io" }
    }
}

这是我的应用程序级gradle文件：

plugins {
    id("com.github.triplet.play") version "2.8.0"
}

apply plugin: 'com.安卓.application'


安卓 {
    compileSdkVersion 29
    defaultConfig {
        applicationId "..."
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 48
        versionName "4.0.4"
        testInstrumentationRunner "安卓x.test.runner.AndroidJUnitRunner"
    }
    signingConfigs {
        release {
            ...
        }
    }
    buildTypes {
        release {
            signingConfig signingConfigs.release
            minifyEnabled true
            shrinkResources true
            proguardFiles getDefaultProguardFile('proguard-安卓-optimize.txt'), 'proguard-rules.pro'
        }
        debug {
            minifyEnabled false
            shrinkResources false
            proguardFiles getDefaultProguardFile('proguard-安卓.txt'),
                    'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    flavorDimensions "version"
    productFlavors{
        spanish{
            dimension "version"
            applicationId "..."
            buildConfigField 'String', 'PRIMARY_COLOR', '"#ffc400"'
            buildConfigField 'String', 'ACCENT_COLOR', '"#C60B1E"'
            buildConfigField 'String', 'LANG_CODE', '"es"'
        }
        italian{
            dimension "version"
            applicationId "..."
            buildConfigField 'String', 'PRIMARY_COLOR', '"#008C45"'
            buildConfigField 'String', 'ACCENT_COLOR', '"#CD212A"'
            buildConfigField 'String', 'LANG_CODE', '"it"'
        }
    }
    packagingOptions {
        exclude 'META-INF/DEPENDENCIES'
    }
}

play {
    ...
}

dependencies {
    //debugImplementation 'com.squareup.leakcanary:leakcanary-安卓:2.0-beta-5'
    implementation fileTree(include: ['*.jar'], dir: 'libs')
    implementation '安卓x.appcompat:appcompat:1.1.0'
    implementation 'com.google.firebase:firebase-core:17.4.4'
    implementation 'com.google.firebase:firebase-firestore:21.7.1'
    implementation 'com.google.firebase:firebase-crashlytics:17.1.1'
    implementation 'br.com.simplepass:loading-button-安卓:2.2.0'
    implementation 'com.google.firebase:firebase-perf:19.0.8'
    implementation 'com.google.firebase:firebase-analytics:17.4.4'
    implementation 'com.google.firebase:firebase-functions:19.0.2'
    implementation 'com.google.安卓.play:core:1.8.0'
    implementation 'com.google.firebase:firebase-config:19.2.0'
    implementation 'com.github.triplet.gradle:play-publisher:2.8.0'
    implementation 'com.google.guava:guava:29.0-安卓'
}
apply plugin: 'com.google.gms.google-services'
apply plugin: 'com.google.firebase.crashlytics'
apply plugin: 'com.google.firebase.firebase-perf'