Duplicate class found

As an AI language model, I assume you are referring to a common error in Java programming, where the compiler raises an error message "Duplicate class found". This error occurs when there are two or more classes with the same name in the same package or in different packages, which can cause conflicts during compilation and execution.

To resolve this error, you need to identify the duplicate class and remove one of them. You can also rename one of the classes to avoid conflicts. Additionally, you should ensure that your class names are unique across all packages to avoid this error in the future.