我正在尝试向我的 Android 项目添加一些依赖项，但我仍然遇到一些奇怪的错误。我正在尝试添加我在 CodeLabs 上找到的推荐依赖项，但它不允许我成功同步我的 gradle 文件。
不断出现的错误如下：错误：无法解决：androidx.lifecycle:lifecycle-extensions:2.2.0-rc2
代码：内部 gradle 模块
// Room components
implementation "androidx.room:room-runtime:$rootProject.roomVersion"
annotationProcessor "androidx.room:room-compiler:$rootProject.roomVersion"
androidTestImplementation "androidx.room:room-testing:$rootProject.roomVersion"
// Lifecycle components
implementation "androidx.lifecycle:lifecycle-extensions:$rootProject.archLifecycleVersion"
annotationProcessor "androidx.lifecycle:lifecycle-compiler:$rootProject.archLifecycleVersion"
// UI
implementation "com.google.android.material:material:$rootProject.materialVersion"
// Testing
androidTestImplementation "androidx.arch.core:core-testing:$rootProject.coreTestingVersion"
gradle 项目中的文本：
ext {
roomVersion = '2.2.1'
archLifecycleVersion = '2.2.0-rc2'
coreTestingVersion = '2.1.0'
materialVersion = '1.0.0'
}
这也是我有时会遇到的一个错误，它是随机出现的...
ERROR: Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.1.0] AndroidManifest.xml:24:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools:replace="android:appComponentFactory"' to <application> element at AndroidManifest.xml:11:5-28:19 to …