DeploymentException：WELD-001408：类型 不满意的依赖项，在注入点[BackedAnnotatedField]]中带有限定符@Default，>

Question

在无法找到答案并包含beans.xml的情况下注入bean时获得以下异常：

Caused by: org.jboss.weld.exceptions.DeploymentException: WELD-001408: Unsatisfied dependencies for type CustomerAgreementDaoImpl with qualifiers @Default
  at injection point [BackedAnnotatedField] @Inject public com.evry.integrator.snow.fetch.CustomerAgreementFetcher.customerAgreementDaoImpl
  at com.evry.integrator.snow.fetch.CustomerAgreementFetcher.customerAgreementDaoImpl(CustomerAgreementFetcher.java:0)

        at org.jboss.weld.bootstrap.Validator.validateInjectionPointForDeploymentProblems(Validator.java:378)
        at org.jboss.weld.bootstrap.Validator.validateInjectionPoint(Validator.java:290)
下面是代码结构：

/ WEB-INF中的Beans.xml

<beans xmlns="http://java.sun.com/xml/ns/javaee" 
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
                           http://java.sun.com/xml/ns/javaee/beans_1_1.xsd"
       version="1.1" bean-discovery-mode="all"> 
</beans>
接口

public interface GenericDao<T, PK> {

public interface CustomerAgreementDao extends GenericDao<CustomerAgreement, Long>{
实现通用DAO的抽象类

public abstract class GenericDaoImpl<T, PK> implements GenericDao<T, PK> {

@PersistenceContext(unitName = "IntegratorMasterdataDS")
protected EntityManager em;
主要实现

@Stateless
public class CustomerAgreementDaoImpl extends GenericDaoImpl<CustomerAgreement, Long> implements CustomerAgreementDao {

public CustomerAgreementDaoImpl() {
    System.out.println("CustomerAgreementDaoImpl");
}
服务类中使用的Dao

@Stateless
public class CustomerAgreementFetcher {

    @Inject
    public CustomerAgreementDaoImpl customerAgreementDaoImpl;
主调度程序正在加载以上所有内容

@Startup
@Singleton
@AccessTimeout(value = 5, unit = TimeUnit.MINUTES)
public class WPoller {
    @Inject
    CustomerAgreementFetcher customerAgreementFetcher;

[在无法找到答案的情况下注入bean并在包含bean.xml的情况下注入以下异常：由以下原因引起：org.jboss.weld.exceptions.DeploymentException：WELD-001408：...

Answer 1

您可以将字段的类型更新为CustomerAgreementDao接口吗？