Android Studio: Build Error When Running Main Method

Question

Issue I am facing:

Created new Java Class called "Hello"
Attempted to run main method:

public class Hello {

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

3: Error I received:

FAILURE: Build failed with an exception.

Where: Initialization script 'C:\Users\User25\AppData\Local\Temp\Hellos_main__.gradle' line: 21
What went wrong: A problem occurred configuring project ':app'.

Could not create task ':app:Hellos.main()'. SourceSet with name 'main' not found.

Things I tried: Ran the "Hello" class with coverage and works just fine. However, I have no idea why I can't simply run the code. I have probably spent a good 2 to 3 hours searching online on how to resolve this issue but couldn't find a solution. Someone had the same problem on the Android Studios forum but nobody got back with a solution. Would appreciate your help. Thanks in advance.

Link to exercise I am trying to follow

Farnad Tohidkhah · Accepted Answer · 2021-04-23 03:35:18Z

2

For running your Java code follows the following steps:

Go to File > New > New Module and select Java Library
Create a Java Library and add your code inside it
Run the code by clicking the green arrow as follows:

You can find more information in this link

edited Apr 23, 2021 at 3:35

answered Apr 23, 2021 at 3:30

Farnad Tohidkhah

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1 Comment

Vikas Pandey Over a year ago

correct. Thanks buddy! This should be accepted answer.

Gavin Wright · Accepted Answer · 2020-09-01 02:44:18Z

1

There is no main() method in Android. the main entry point is an Activity as specified in AndroidManifest.xml (usually called MainActivity).

answered Sep 1, 2020 at 2:44

Gavin Wright

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