Unsatisfied dependency expressed through field

Ver se podem me ajudar …Estou iniciando um projeto jsf , spring e esta ocorrendo o seguinte erro:

GRAVE: Context initialization failed
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name ‘usuService’: Unsatisfied dependency expressed through field ‘usuDao’; nested exception is org.springframework.beans.factory.NoSuchBeanDefinitionException: No qualifying bean of type ‘br.com.dao.usuDao’ available: expected at least 1 bean which qualifies as autowire candidate. Dependency annotations: {@org.springframework.beans.factory.annotation.Autowired(required=true)}

Você marcou sua classe de dao com @Autowired?