将Google Play服务添加到android应用会导致'com.android.support和AndroidX.*conflict'[重复]

Question

当我在Android Studio中生成一个新的“空活动”应用程序时，我会在app/build.gradle中获得以下依赖项：

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:28.0.0'
    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.2'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
}

implementation 'com.google.android.gms:play-services-ads:18.1.1'

Dependencies using groupId com.android.support and androidx.* can not be combined but found IdeMavenCoordinates{myGroupId='com.android.support', myArtifactId='support-vector-drawable', myVersion='28.0.0', myPacking='aar', myClassifier='null'} and IdeMavenCoordinates{myGroupId='androidx.loader', myArtifactId='loader', myVersion='1.0.0', myPacking='aar', myClassifier='null'} incompatible dependencies more... (Ctrl+F1)

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:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
    Suggestion: add 'tools:replace="android:appComponentFactory"' to <application> element at AndroidManifest.xml:5:5-19:19 to override.

Answer 1

你的错误很容易解释。上面写着：

Dependencies using groupId com.android.support and androidx.* can not be combined

这意味着，您将support和AndroidX依赖项混为一谈。

更清楚地说，您几乎在任何地方都在使用支持库，即在app/build.gradle中包含com.android.support的任何东西，但最新的ads库使用AndroidX依赖项。

您可以在这里找到如何迁移到AndroidX。

关于另一个关于清单合并失败的错误，您可以按照这里给出的答案中的说明来修复它。