no, that `detekt.gradle.kts` can be in groovy ok s...

# gradle

[mkobit]

no, that detekt.gradle.kts can be in groovy
ok so i am fairly confident in at least what the issue is:
1) rootproject has apply from: 'detekt.gradle.kts' as the very first thing. i think this will happen after the buildscript is evaluated for the buildscript classpath (i would move it underneath)
2) the kotlin plugin applies the gradle built-in java. when java is applied it creates that convention above.
3) you aren't applying the java or kotlin plugin to the rootproject, which looks like it makes sense because you dont have any source in it
4) script compilation fails (with an unhelpful message) because there is no convention or java plugin applied to the root project