来自androidx和com.android.support的重复类 [英] Duplicate classes from androidx and com.android.support

问题描述

我最近更新了Android Studio(并且我非常确定Gradle版本)，现在在尝试编译项目时遇到了很多错误.这是目前困扰我的人:

I recently updated my Android Studio (and I'm pretty sure the Gradle version), and now I've been getting a bunch of errors when trying to compile my project. Here's the one that is plaguing me at the moment:

Duplicate class android.support.v4.app.INotificationSideChannel found in modules classes.jar (androidx.core:core:1.0.1) and classes.jar (com.android.support:support-compat:26.1.0)

其次是很多类似的东西.

This is followed by lots of similar ones.

我尝试删除对com.android.support的所有使用以支持androidx(请参见此处 (因为我使用的是替换对象)，但是即使删除了库，仍在使用com.android.support库(一旦尝试再次编译它们，它们就会被重新制作).

I tried removing all uses of com.android.support in favor of androidx (see here for what I was using the replace things), but com.android.support libraries are still being used, even when I delete the libraries (they're just remade once I try to compile again).

这是指向我收到的完整错误的链接.

Here's a link to the full error I get.

推荐答案

将这些行添加到gradle.properties:

android.useAndroidX=true
android.enableJetifier=true

如果没有gradle.properties，请在项目的根目录中创建文件.

If gradle.properties is absent, create the file in the root directory of your project.

看起来您的依赖项中的任何地方都有一些support遗物，也许来自lib?要调查并查看依赖关系树，请运行:

It looks like you have some support relics anywhere in your dependencies, maybe from a lib? To investigate and see the dependencies tree, please run:

./gradlew :yourApp:dependencies

然后您会从那里看到它.

and then you see from where it comes.

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