Android studio 执行main方法报错

Android studio 执行main方法报错

运行 Java main 方法报错

public class Hello {
    public static void main(String[] args) {
        System.out.println("Hello Java");
    }
}

* Where:
Initialization script 'C:\xxx\Hello_main__.gradle' line: 21

* What went wrong:
A problem occurred configuring project ':app'.
> Could not create task ':app:Hello.main()'.
   > SourceSet with name 'main' not found.

解决办法:
项目 .idea 文件夹中 gradle.xml 文件中 添加 ,添加完如下