执行任务taskableableJar，mockable-android-失败.罐子已经存在 [英] Execution failed for task mockableAndroidJar, mockable-android- . jar already exists

问题描述

我面临Android Studio 3，gradle android插件3(构建目标为27，并支持lib 27.0.0)的问题

I am facing issue with Android Studio 3, gradle android plugin 3 with build target 27 and support lib 27.0.0

Error:Execution failed for task ':module:mockableAndroidJar'.
> Output file [[...]/build/generated/mockable-android-27.v3.jar] already exists.

我必须不时清理或手动从生成的文件夹中删除所有可模仿的Android jar.因此，这意味着除了获得更好的构建时间外，我还必须大部分时间清理项目.

I have to clean or manually delete all mockable-android jars from the generated folder time to time. So this means instead of getting better build times, I have to clean the project most of the times.

推荐答案

在再次运行任务之前，只需清理现有的jar.运行clean是可以的，但是在我看来这有点紧张.相反，让android生成的任务依赖于一个非常特定的清理任务:

Simply cleanup the existing jar before running the task again. Running cleandoes work, but it's a little intense in my opinion. Instead, make the android-generated task depend on a very specific cleanup task:

task cleanAndroidMock(type: Delete) {
    description = 'Deletes the mockable Android jar'

    delete fileTree("${project.buildDir}/generated") {
        include 'mockable-android*.jar'
    }
}

project.afterEvaluate {
    tasks['mockableAndroidJar'].dependsOn cleanAndroidMock
}

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