【Android Studio】无法执行main方法 报错问题

【问题描述】

在Android Studio中执行main方法出现错误、无法正常运行

[借用下被人的报错截图（自己的控制台忘记截图了 回不去了）]

12:04:41: Executing task 'HelloWorld.main()'...

Executing tasks: [HelloWorld.main()] in project D:\AndroidStudioProjects\MyApplication8


> Configure project :app
WARNING: The following project options are deprecated and have been removed: 
android.enableAapt2
This property has no effect, AAPT2 is now always used.



FAILURE: Build failed with an exception.

* Where:
Initialization script 'C:\Users\cj\AppData\Local\Temp\HelloWorld_main__.gradle' line: 20

* What went wrong:
A problem occurred configuring project ':app'.
> Could not create task ':app:HelloWorld.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

Deprecated Gradle features were used in this build, making it incompatible with Gradle 6.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/5.6.4/userguide/command_line_interface.html#sec:command_line_warnings

BUILD FAILED in 116ms
12:04:41: Task execution finished 'HelloWorld.main()'.

【解决方法】

在.idea文件夹下找到 gradle.xml 文件，在该文件中的加上下面这段话：

        <option name="delegatedBuild" value="false" />

添加完成后，重新run一下main方法即可正常运行。