Hi, I need backup OM 2.0 user and files for OM 3.0 but I have this error (in GUI or admin.sh command):
org.springframework.dao.InvalidDataAccessApiUsageException: Encountered new object in persistent field "org.apache.openmeetings.db.entity.calendar.Appointment.room" during attach. However, this field does not allow cascade attach. Set the cascade attribute for this field to CascadeType.MERGE or CascadeType.ALL (JPA annotations) or "merge" or "all" (JPA orm.xml). You cannot attach a reference to a new object without cascading.; nested exception is <openjpa-2.2.2-r422266:1468616 nonfatal user error> org.apache.openjpa.persistence.ArgumentException: Encountered new object in persistent field "org.apache.openmeetings.db.entity.calendar.Appointment.room" during attach. However, this field does not allow cascade attach. Set the cascade attribute for this field to CascadeType.MERGE or CascadeType.ALL (JPA annotations) or "merge" or "all" (JPA orm.xml). You cannot attach a reference to a new object without cascading. FailedObject: org.apache.openmeetings.db.entity.room.Room@1d657b9 How do I make?
