iReport - java.lang.ClassNotFoundException

Im using iReport 3.7.6.

I have a Parameter with following parameter class: at.gv.domain.print.impl.ParameterClass.

For using that class I did following:

--> Extras --> Option --> Classpath --> Add Folder -->

C:\Development\Projectname\workspace\DomainProject\target\classes

Under C:\Development\Projectname\workspace\DomainProject\target\classes\at\gv\domain\print\impl there are my ParameterClass.class.

Now if I wanna compile the .jrxml I get following error:

net.sf.jasperreports.engine.design.JRValidationException: Report design not valid开发者_JAVA百科 :

1. java.lang.ClassNotFoundException: at.gv.domain.print.impl.ParameterClass

Someone can tell me why? I added the classpath entry so why the class got not found?

I tried to make a .jar of my Domain project - if I added that the class got found. Is there any problem with target directory (Im using Maven)?

Your probleme is with the jar of ireport, I think that the version of ireport is not the same as the jar used in the IDE, if it's true try to change the jar that's all, hope this help.