Android Studio Navigation Safeargs: com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable - Error

Question

just started working in Android Studio and trying to add the navigation safeargs, when this error occurred: com.android.build.gradle.internal.tasks.CheckDuplicatesRunnable

No idea what I did. Here are my build.gradle files:

    plugins {
    id 'com.android.application'
    id 'androidx.navigation.safeargs'

}

[...]

android {
    


    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildFeatures {
        viewBinding true
    }

    buildscript {
        repositories {
            google()
        }
        dependencies {
            def nav_version = "2.4.2"
            classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"        }
    }
}

dependencies {

    implementation 'androidx.appcompat:appcompat:1.4.1'
    implementation 'com.google.android.material:material:1.5.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
    implementation 'androidx.navigation:navigation-fragment:2.4.2'
    implementation 'androidx.navigation:navigation-ui:2.4.2'
    implementation 'androidx.navigation.safeargs:androidx.navigation.safeargs.gradle.plugin:2.4.2'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

and

// Top-level build file where you can add configuration options common to all sub-projects/modules.

// no idea but this block seems to be also in this file?
buildscript {
    repositories {
        google()
    }
    dependencies {
        def nav_version = "2.4.2"
        classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"        }
}

plugins {
    id 'com.android.application' version '7.1.3' apply false
    id 'com.android.library' version '7.1.3' apply false
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

The plugin androidx.navigation.safeargs just worked, after adding the

        repositories {
            google()
        }
        dependencies {
            def nav_version = "2.4.2"
            classpath "androidx.navigation:navigation-safe-args-gradle-plugin:$nav_version"        }
    }

additionally to the top-level build.gradle-file. Originally this code was generated in the module part. Could this be somehow part of the error?

So far I tried Tutorials like:https://developer.android.com/guide/navigation/navigation-pass-data#java and https://developer.android.com/jetpack/androidx/releases/navigation#groovy