error: cannot find symbol

This error occurs when the compiler cannot find a particular symbol or identifier that is being referenced in the code. This could be a variable, method, class, or any other identifier that has not been declared or imported properly.

To fix this error, you need to ensure that the symbol is declared or imported correctly in the code. Check the spelling and casing of the identifier and ensure that it is in the correct scope. If the symbol is defined in another class or package, make sure to import it properly. If the symbol is a variable, make sure that it has been declared before it is used in the code.

If you are still unable to resolve the error, try cleaning and rebuilding the project, or check if there are any missing dependencies in your project.