Android Studio运行Kotlin代码报错

- 问题

按照《第一行代码Android第三版》2.2节中新建了LearnKotlin.kt，输入了main函数，运行却报错如下

FAILURE: Build failed with an exception.

• Where:
  Initialization script ‘C:\Users\stserver86001\AppData\Local\Temp\LearnKotlinKt_main__.gradle’ line: 27

• What went wrong:
  A problem occurred configuring project ‘:app’.

Could not create task ‘:app:LearnKotlinKt.main()’.
SourceSet with name ‘main’ not found.

• Try:
  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

• Get more help at https://help.gradle.org

解决办法

在.idea\gradle.xml中添加如下代码，重新按Ctrl+Shift+F10即可成功运行Kotlin代码