Никак не поддается библиотека PixImagePicker в AndroidStudio

Я использую эту библиотеку https://github.com/akshay2211/PixImagePicker/tree/activity_branch Делал так, как указано на гитхабе. Вот файл settings.gradle.kts

pluginManagement {
    repositories {
        google()
        mavenCentral()
        gradlePluginPortal()
    }
}
dependencyResolutionManagement {
    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
    repositories {
        google()
        mavenCentral()
        maven {
            url = uri("https://jitpack.io")
        }
    }

    rootProject.name = "Bulletin Board"
    include(":app")
}

Файл build.gradle.kts(:app)

dependencies {

    implementation("androidx.core:core-ktx:1.12.0")
    implementation("androidx.appcompat:appcompat:1.6.1")
    implementation("com.google.android.material:material:1.10.0")
    implementation("androidx.constraintlayout:constraintlayout:2.1.4")
    implementation("com.google.firebase:firebase-auth-ktx:22.2.0")
    implementation("com.google.firebase:firebase-database-ktx:20.3.0")
    implementation("com.google.firebase:firebase-storage-ktx:20.3.0")
    implementation(platform("com.google.firebase:firebase-bom:32.3.1"))
    implementation("com.google.firebase:firebase-auth-ktx")
    implementation("com.google.android.gms:play-services-auth:20.7.0")
    implementation  ("com.fxn769:pix:1.5.6")
    testImplementation("junit:junit:4.13.2")
    androidTestImplementation("androidx.test.ext:junit:1.1.5")
    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
}

ImagePicker.kt

import androidx.appcompat.app.AppCompatActivity
import com.fxn769.pix.Options
import com.fxn769.pix.Pix

object ImagePicker {
    const val REQUEST_CODE_GET_IMAGES = 999

    fun getImages(context: AppCompatActivity) {
        Options options = Options.init()
            .setRequestCode(REQUEST_CODE_GET_IMAGES)                                           //Request code for activity results
            .setCount(3)                                                   //Number of images to restict selection count
            .setFrontfacing(false)                                         //Front Facing camera on start
            .setPreSelectedUrls(returnValue)                               //Pre selected Image Urls
            .setSpanCount(4)                                               //Span count for gallery min 1 & max 5
            .setMode(Options.Mode.All)                                     //Option to select only pictures or videos or both
            .setVideoDurationLimitinSeconds(30)                            //Duration for video recording
            .setScreenOrientation(Options.SCREEN_ORIENTATION_PORTRAIT)     //Orientaion
            .setPath("/pix/images");                                       //Custom Path For media Storage

        Pix.start(context, options);
    }
}

Но выходят ошибки

Unresolved reference: fxn769
Unresolved reference: fxn769
Unresolved reference: Options
Unresolved reference: Pix
Unresolved reference: options

Как их исправить? Знаю, что есть новая библиотека https://github.com/akshay2211/PixImagePicker#usage но я не понимаю, как ей пользоваться