IntelliJ IDEA Ultimate 2018.3 thinks my Java 9 Project is a Kotlin Project

Question

I have an IntelliJ project composing several subprojects which are all Java 9 modules. I use Maven as a build system. My project has no \"Facets\". My run configuration look

Answer 1

Meanwhile, this can be fixed using the kotlin-stdlib.jar available in Kotlin JavaRuntime:

module kotlin.test {
    requires kotlin.stdlib;
}

where kotlin.test should be replaced with your module name.

Just in case the details matter, I am using

IntelliJ IDEA 2018.3 (Community Edition)
Build #IC-183.4284.148, built on November 21, 2018

and the Kotlin JavaRunTime mentioned above has sources from the path Contents/plugins/Kotlin/kotlinc/lib within the IntelliJ .app which includes kotlin-stdlib.jar as one of them.

Answer 2

i had the same problem i deleted the file and start all over again, and its work fine after it