Standalone UAST parser 关注

I'm using the following code to create a standalone UAST parser: https://github.com/bfergerson/standalone-uast

I'm able to get UFile & UClass objects from Java files but only UFile objects from Kotlin files. After solving several NPEs looking for various services during the initialization of JavaCoreApplicationEnvironment & JavaCoreProjectEnvironment, I've gotten stuck on the following error:

Could not find installation home path. Please make sure bin/idea.properties is present in the installation directory.

I would appreciate help getting past this error but I would also appreciate it if someone can take a look through my code to tell me what I'm doing wrong in setting up the environment for Kotlin UAST support.

For example, to get past one of the NPEs I had to use the following reflection hack:

val instance = IdeaDefaultIdeTargetPlatformKindProvider::class.java.let {
    it.getDeclaredConstructor().let {
        it.isAccessible = true
        it.newInstance()
    }
}
registerApplicationService(DefaultIdeTargetPlatformKindProvider::class.java, instance)

I doubt this is how DefaultIdeTargetPlatformKindProvider is supposed to be setup so I would really appreciate some help on how I'm supposed to be setting up the environment.