galera, estou tentando fazer um esquema aqui usando jpa, mas num ta dando certo nem a pau
o erro eh esse:
log4j:WARN No appenders could be found for logger (org.hibernate.cfg.annotations.Version).
log4j:WARN Please initialize the log4j system properly.
Exception in thread "main" javax.persistence.PersistenceException: No Persistence provider for EntityManager named jpa-hibernate
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:56)
at javax.persistence.Persistence.createEntityManagerFactory(Persistence.java:34)
at br.com.bb.jpa.hibernate.GenerateDatabase.main(GenerateDatabase.java:12)
alguem sabe como fazer pra acabar com esse erro?