I'm getting the error also occurs when trying to run "./js-ant import-minimal-pro".
org.springframework.beans.factory.CannotLoadBeanClassException: Cannot find class [com.jaspersoft.commons.xml.EasyXML] for bean with name 'easyXML' defined in class path resource [applicationContext-export-import-pro.xml]; nested exception is java.lang.ClassNotFoundException: com.jaspersoft.commons.xml.EasyXML