Gradle Setup (For Gradle Version 7+)

On Gradle 7+, repositories are declared in settings.gradle under dependencyResolutionManagement, not in the project build.gradle:

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

Important: Remove any allprojects { repositories { … } } block from your root build.gradle when using this pattern. With FAIL_ON_PROJECT_REPOS, leaving allprojects repositories in place causes a Gradle error.

For projects that still use the legacy allprojects pattern, see the repository block on individual mediation pages - use one approach, not both.