Hi,
The wiki, and this very forum is the only place for information. There are no manuals.
About the 1st error:
The filename of the the indicator must be the same as the class name. For example:
If you want to create an indicator called MySuperIndicator,
you have to use the filename MySuperIndicator.java,
and you have to use the classname MySuperIndicator as well
public class MySuperIndicator implements IIndicator {
I suggest to setup a project in Eclipse. That will help you a lot:
https://www.dukascopy.com/wiki/#Use_in_EclipseSuccess!