Gradle迁移3.1.4-> 3.5.1; :app模块无法编译; ClassNotFoundException:在路径:DexPathList上找不到类

时间:2019-10-13 09:16:39

标签: java android gradle kotlin build

我有两个应用程序在尝试将项目target API从27更新到29时遇到相同的问题。为此,首先我需要至少将Gradle插件更新为3.2.+

项目在3.1.4的帮助下可以正常运行,但是当我将Gradle插件升级为: classpath 'com.android.tools.build:gradle:3.5.1 distributionUrl=https\://services.gradle.org/distributions/gradle-5.4.1-all.zip (与3.2.1及更高版本相同的错误)

我看到下一个运行时异常:

Process: com.my.app, PID: 29804
java.lang.RuntimeException: Unable to instantiate application com.my.app: java.lang.ClassNotFoundException: Didn't find class "com.my.app" on path: DexPathList[[zip file "/data/app/com.my.app-Y6_GNyscecqK5BtUnp_kjQ==/base.apk"],nativeLibraryDirectories=[/data/app/com.my.app-Y6_GNyscecqK5BtUnp_kjQ==/lib/x86, /data/app/com.my.app-Y6_GNyscecqK5BtUnp_kjQ==/base.apk!/lib/x86, /system/lib]]

:app 模块源代码根本未编译的问题 (我可以创建手动编译错误,并且 run 仍然会成功)

在两个应用程序中相同。 我累了:

  • 我检查了APK中生成的DEX文件,源代码不存在;
  • 我使用3.5.1插件创建了一个新项目-效果很好;
  • 试图删除gradle.idea文件夹;
  • 尝试使用cleaninvalidate cache
  • 将项目迁移到AndroidX
  • 添加了multiDexEnabled true-无论如何之前都没有它;
  • 复制到新项目的依赖项-工作正常;
  • 已添加:至 gradle.properties android.useAndroidX=true android.enableJetifier=true

我的构建文件:

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buildscript {
    ext.kotlin_version = '1.3.41'
    repositories {
        google()
        jcenter()
        maven {
            url 'https://maven.fabric.io/public'
        }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.5.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
        classpath "io.realm:realm-gradle-plugin:6.0.0"
        classpath 'com.google.gms:google-services:4.3.2'
        classpath 'io.fabric.tools:gradle:1.31.1'
        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}
allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url 'https://maven.google.com/'
        }
    }
}
task clean(type: Delete) {
    delete rootProject.buildDir
}

应用程序:

apply plugin: 'com.android.application'
apply plugin: 'kotlin-android'
apply plugin: 'kotlin-android-extensions'
apply plugin: 'kotlin-kapt'
apply plugin: 'realm-android'
apply plugin: 'io.fabric'
android {
    compileSdkVersion 29
    buildToolsVersion "29.0.2"
    defaultConfig {
        applicationId "com.my.app"
        minSdkVersion 21
        targetSdkVersion 29
        versionCode 2
        versionName "1.01"
        multiDexEnabled true
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        multiDexEnabled = true
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            signingConfig signingConfigs.release
        }
    }
}
ext.anko_version='0.10.5'
dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation"org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'androidx.appcompat:appcompat:1.0.0'
    implementation 'androidx.constraintlayout:constraintlayout:1.1.3'
    implementation 'androidx.gridlayout:gridlayout:1.0.0'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    implementation 'com.google.android.material:material:1.0.0'
    implementation 'androidx.preference:preference:1.0.0'
    implementation 'androidx.recyclerview:recyclerview:1.0.0'
    implementation 'androidx.cardview:cardview:1.0.0'
    implementation 'com.google.firebase:firebase-core:16.0.1'
    implementation 'com.crashlytics.sdk.android:crashlytics:2.9.5'
    implementation 'com.facebook.fresco:fresco:1.2.0'
    implementation "org.jetbrains.kotlin:kotlin-reflect:$kotlin_version"
    implementation 'io.reactivex.rxjava2:rxkotlin:2.2.0'
    implementation 'io.reactivex.rxjava2:rxandroid:2.1.0'
    implementation 'com.jakewharton.rxbinding2:rxbinding:2.1.0'
    implementation "org.jetbrains.anko:anko-sdk21:$anko_version"
    implementation "org.jetbrains.anko:anko-appcompat-v7:$anko_version"
    implementation "org.jetbrains.anko:anko-constraint-layout:$anko_version"
    implementation "org.jetbrains.anko:anko-recyclerview-v7:$anko_version"
    implementation "org.jetbrains.anko:anko-recyclerview-v7-coroutines:$anko_version"
    implementation "org.jetbrains.anko:anko-cardview-v7:$anko_version"
    implementation 'com.r0adkll:slidableactivity:2.0.6'
    debugImplementation 'com.squareup.leakcanary:leakcanary-android:1.6.1'
    releaseImplementation 'com.squareup.leakcanary:leakcanary-android-no-op:1.6.1'
    debugImplementation 'com.squareup.leakcanary:leakcanary-support-fragment:1.6.1'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'androidx.test.ext:junit:1.1.1'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0'
    kapt "io.realm:realm-annotations-processor:5.9.0"
}
apply plugin: 'com.google.gms.google-services'

注意:另一个具有不同依赖关系的项目仍然面临相同的问题

为什么在迁移到较新的Gradle时仍能在旧版本上正常工作,但未将源代码添加到APK?

更新1 我将项目更新到Gradle 3.2+

后,问题立即出现

更新2 Build文件夹不包含类文件夹和类文件

更新3 :app 模块的源代码即使在 settings.gradle 文件中也无法编译;我可以在任何.java文件中创建构建错误,并且 run 将成功执行

1 个答案:

答案 0 :(得分:0)

我发现了一个问题: 我的一个软件包名称为vas cvs -似乎是在Gradle 3.2。+之后的,它是保留字。