我试图在我的应用程序中使用AndroidX库，但是遇到了问题。我了解与Firebase相关的问题。如您所见，我排除了支持v4库，这是有原因的。如果删除这些行，则会出现另一个错误：“程序类型已存在：android.support.v4.media.MediaBrowserCompat $ ConnectionCallback $ StubApi21”。那么，如何一起使用AndroidX和Firebase？有什么解决办法吗？
E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ignes.androidxtest, PID: 30800
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/ArrayMap;
at com.google.firebase.FirebaseApp.<clinit>(SourceFile:135)
at com.google.firebase.FirebaseApp.initializeApp(SourceFile:273)
at com.google.firebase.provider.FirebaseInitProvider.onCreate(SourceFile:37)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1696)
at android.content.ContentProvider.attachInfo(ContentProvider.java:1671)
at com.google.firebase.provider.FirebaseInitProvider.attachInfo(SourceFile:31)
at android.app.ActivityThread.installProvider(ActivityThread.java:5084)
at android.app.ActivityThread.installContentProviders(ActivityThread.java:4679)
at android.app.ActivityThread.handleBindApplication(ActivityThread.java:4619)
at android.app.ActivityThread.access$1500(ActivityThread.java:155)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1378)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5343)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:905)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:700)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.ArrayMap" on path: DexPathList[[zip file "/data/app/com.ignes.androidxtest-2/base.apk", zip file "/data/app/com.ignes.androidxtest-2/split_lib_dependencies_apk.apk", zip file "/data/app/com.ignes.androidxtest-2/split_lib_slice_0_apk.apk", zip file "/data/app/com.ignes.androidxtest-2/split_lib_slice_1_apk.apk", zip file "/data/app/com.ignes.androidxtest-2/split_lib_slice_2_apk.apk", zip …我试图用 gradle 构建我的项目。我收到此错误：
"Detecting annotation processors on the compile classpath has been deprecated. Gradle 5.0 will ignore annotation processors on the compile classpath. The following annotation processors were detected on the compile classpath: 'org.apache.logging.log4j.core.config.plugins.processor.PluginProcessor'. Please add them to the annotation processor path instead. If you did not intend to use annotation processors, you can use the '-proc:none' compiler argument to ignore them."
我知道我必须使用 annotattionProcessor 而不是编译。但实际上如何做到这一点。这是我的 gradle 文件依赖项的一部分：
dependencies {
implementation 'org.apache.logging.log4j:log4j-api:2.11.1'
implementation 'org.apache.logging.log4j:log4j-core:2.11.1'
}
我试图像这样使用它（隐式方式），但它不起作用
dependencies {
implementation 'org.apache.logging.log4j:log4j-api:2.11.1'
implementation …