java.lang.illegalStateException:节点没有数据类型:org.hibernate.hql.ast.tree.methodnode

大家好,我在下面的方法中得到了这个异常,我不知道为什么:

List<Date> temps = getCurrentSession()
                .createQuery(
                        "select distinct date(uploadDate) from FileDomain where projectId=:projectId"
                                + " and entityId not in(select fileId from FileVersion) order by date(uploadDate) desc ")
                .setLong("projectId", projectId).list();