i have applied the plugin at root level build.gradle.kts

detekt {
    source = files(rootProject.rootDir, "src")
}

tasks.withType<Detekt>().configureEach {
    setSource(files("src/main/res"))
    include("**/*.kt")
    include("**/*.kts")
    include("**/*.xml")
    include("**/**.xml")
    exclude("**/resources/**")
    exclude("**/build/**")
}

As you can see I have tried it with redundancy in hope that I will get lucky with one of the syntaxes but didn't work with either of them