Launching lib\main.dart on X900 in debug mode…
[!] Your app isn’t using AndroidX.
To avoid potential build failures, you can quickly migrate your app by following the steps on https://goo.gl/CP92wY.
Running Gradle task ‘assembleDebug’…
D:\Flutter\Projects\flutter_trip\flutter_trip\android\app\src\debug\AndroidManifest.xml:22:18-91 Error:
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 element at AndroidManifest.xml:8:5-29:19 to override.

FAILURE: Build failed with an exception.

• What went wrong:
  Execution failed for task ‘:app:processDebugManifest’.

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 element at AndroidManifest.xml:8:5-29:19 to override.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

BUILD FAILED in 5s
AndroidX incompatibilities may have caused this build to fail. Please migrate your app to AndroidX. See https://goo.gl/CP92wY.
Finished with error: Gradle task assembleDebug failed with exit code 1

以上是报错信息，不知道如何解决