问题描述

我对 Android 开发完全陌生，似乎无法解决此错误:错误:程序类型已存在:android.support.v4.media.MediaBrowserCompat$CustomActionCallback"

I completely new to Android Development and can't seem to resolve this error: "Error: Program type already present: android.support.v4.media.MediaBrowserCompat$CustomActionCallback"

这是我的依赖:

dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
implementation 'androidx.appcompat:appcompat:1.0.0-alpha1'
implementation 'androidx.constraintlayout:constraintlayout:1.1.2'
implementation 'androidx.lifecycle:lifecycle-extensions:2.0.0-alpha1'
implementation 'androidx.legacy:legacy-support-v4:1.0.0-alpha1'
implementation "android.arch.navigation:navigation-fragment:1.0.0-alpha01"
implementation "android.arch.navigation:navigation-ui:1.0.0-alpha01"


androidTestImplementation 'androidx.test:runner:1.1.0-alpha3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.1.0-alpha3'
testImplementation 'junit:junit:4.12'
}

我在 Google 上搜索了一些内容，最后在开发者页面上找到了有关解决重复的类错误"的信息，但我仍然无法解决这个问题.非常感谢您的帮助！

I've googled some and ended up on the developer page about "Resolve duplicate class errors", but I'm still not able to fix this. Help would be very much appriciated!

推荐答案

选项1

以下对我有用在 gradle.properties 文件中添加以下内容

Following worked for me Add the following in your gradle.properties file

android.useAndroidX = true
android.enableJetifier = false

选项 2(如果上述方法不起作用)

Option 2 (if above does't work)

1. Android 工作室 -> 导航 -> 类
2. 检查是否包含非项目类
3. 复制完整的类路径 android.support.v4.accessibilityservice.AccessibilityServiceInfoCompat
4. 查看它的用途.您可能需要删除其中之一.

选项 3您可能会包含包含模块的包，因此请使用以下方法排除 support-v4 模块

Option 3 you might be including package which is including modules as well so exclude the support-v4 module with following method

implementation ('org.eclipse.paho:org.eclipse.paho.android.service:1.0.2') {
      exclude group: 'com.android.support', module:'support-v4'
}

您可以从项目存储库中的命令行使用 ./gradlew :YOURPROJECT:dependencies 分析冲突模块.特别检查您的第三方库是否出现com.android.support-":

You can analyze the conflicting modules using ./gradlew :YOURPROJECT:dependencies from a command line in your project repository. Check especially your third party libraries for occurences of "com.android.support-":

然后从这些依赖项中排除冲突的模块，例如:

Then exclude the conflicting modules from these dependencies like:

   implementation ("com.jakewharton:butterknife:8.8.1") {
    exclude group: 'com.android.support', module: 'support-v4'
    exclude group: 'com.android.support', module: 'support-annotation'
    exclude group: 'com.android.support', module: 'support-compat'
}

这篇关于程序类型已存在:android.support.v4.media.MediaBrowserCompat$CustomActionCallback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跟版网！