对于其他将来遇到困难的人，我遇到了以下问题:

For any others struggling in the future, I've had the following issue:

已经在gradle文件中生成了IntelliJ Kotlin/JS入门项目:

IntelliJ Kotlin/JS starter project has been generated with this in the gradle file:

implementation "org.jetbrains.kotlin:kotlin-stdlib-js"

要获取kotlin.js文件，必须是

compile "org.jetbrains.kotlin:kotlin-stdlib-js"