JasperSoft Studio can't resolve dependency

[Joe Taras]

Hi, I've installed JasperSoft Studio 6.8.0.

 

I've created ny "My Project" folder and I've added all old report (written with iReport).

I've added as Java Build Path all my classes (taken from target/classes of my Java project), and I've added Hibernate jar about UserType dependency.

Now, when I try to compile my report, I've this error:

net.sf.jasperreports.engine.JRException: Errors were encountered when compiling report expressions class file: org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
General error during class generation: java.lang.NoClassDefFoundError: Unable to load class it.jtr.shared.core.TrackSys due to missing dependency Lit/jtr/shared/dmn/CustomCalendar;

TrackSys is my class and it has a property of CustomCalendar type.

TrackSys and CustomCalendar are in target/classes path folder, but Jasper can't resolve this dependency.

How can I do?

EDIT

I've added in folder the library (.jar file) of my Java project but the error remains