Gradle compiling issue

[TBar09]

I tried to build a haxeflixel project and it gives me this error at the gradle part of the compiling process.

> Task :app:checkDebugAarMetadata FAILED

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:checkDebugAarMetadata'.
> Configuration `:app:debugRuntimeClasspath` contains AndroidX dependencies, but the `android.useAndroidX` property is not enabled, which may cause runtime issues.
  Set `android.useAndroidX=true` in the `gradle.properties` file and retry.
  The following AndroidX dependencies are detected:
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0 -> androidx.annotation:annotation:1.1.0
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0 -> androidx.lifecycle:lifecycle-runtime:2.0.0
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0 -> androidx.lifecycle:lifecycle-runtime:2.0.0 -> androidx.lifecycle:lifecycle-common:2.0.0
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0 -> androidx.lifecycle:lifecycle-runtime:2.0.0 -> androidx.arch.core:core-common:2.0.0
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0 -> androidx.versionedparcelable:versionedparcelable:1.1.0
  :app:debugRuntimeClasspath -> project :deps:androidtools -> androidx.core:core:1.2.0 -> androidx.collection:collection:1.0.0

(also I have tried to set useAndroidX in my project.xml but that didn't change anything)
I currently use these to build android projects:

Java: jdk-17
Gradle: 7.4.2
Gradle-plugin: 7.3.1

<define name="ANDROID_SDK" value="C:\Users\Owner\AppData\Local\Android\Sdk" />
<define name="ANDROID_NDK_ROOT" value="C:\Users\Owner\AppData\Local\Android\Sdk\ndk\21.4.7075529" />

Any ideas as to what the problem could be is appreciated.