Hello World problem for beginner

[eluser]xwero[/eluser]
No you don't need to configure a database by default.

Try putting the hello world into a view instead of outputting it and call the view file. That is the way the hello world should function if you want to follow the MVC pattern.

There should be no problem with the controller as it is. I don't see how you get the error message you see on your screen. Are you including an external file somewhere or autoloading a custom library, helper, model or plugin?