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kotlinlang

This happened after I changed the jdk from 1.8 to 11

I had the same issue when using the “embedded JDK”. Changing it to AdoptOpenJdk 11 or Amazon Coretto 11 fixed the issue for me. <https://youtrack.jetbrains.com/issue/KT-48920/Cannot-access-java.lang.Comparable-which-is-a-supertype-of-org.gradle.kotlin.dsl.KotlinBuildScript.-Check-your-module-classpath|https://youtrack.jetbrains.com/issue/KT-48920/Cannot-access-java.lang.Comparable-which-i[…]kotlin.dsl.KotlinBuildScript.-Check-your-module-classpath>