“使用jack编译时无法测试混淆的变体"使用Jack工具链构建Android应用时出错 [英] "Cannot test obfuscated variants when compiling with jack" error when building Android app with Jack toolchain

问题描述

我正在尝试按照本文

I'm trying to enable the Jack toolchain in my Android project by following the steps in this article https://developer.android.com/preview/j8-jack.html but as soon as I add

android {
    defaultConfig {
        jackOptions {
            enabled true
        }
    }
}

并运行gradle clean，我立即收到此错误:

and run gradle clean, I get this error right away:

使用jack编译时无法测试混淆的变体

Cannot test obfuscated variants when compiling with jack

我在一个非常简单的Android项目中进行了尝试，但仍然遇到相同的错误.这是一个示例gradle.build文件:

I tried it with a very simple Android project and I still get the same error. This is a sample gradle.build file:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.3"

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdkVersion 7
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
        jackOptions {
            enabled true
        }
    }
    buildTypes {
        release {
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.4.0'
    compile 'com.android.support:design:23.4.0'
}

推荐答案

D'哦！解决方法非常简单.显然，杰克与ProGuard和以下产品线不兼容:

D'oh! The fix was really simple. Apparently Jack is not compatible with ProGuard and the line:

release {
    minifyEnabled true
}

启用ProGuard，因为它现在称为"minify".将其切换为false可以解决此问题...我只是没有看到该行，因为它位于不同的部分...

enables ProGuard, since it's now called "minify". Switching it to false fixes the issue... I just didn't see the line because it was in a different section...

这篇关于“使用jack编译时无法测试混淆的变体"使用Jack工具链构建Android应用时出错的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！