jsf – WELD-001408：具有限定符@Default的Customer类型的不满意

cannot Deploy onlineshop-war
deploy is failing=Error occurred during deployment: Exception while loading the app : CDI deployment failure:WELD-001408: Unsatisfied dependencies for type Customer with qualifiers @Default
at injection point [BackedAnnotatedField] @Inject private de.java2enterprise.onlineshop.RegisterController.customer
at de.java2enterprise.onlineshop.RegisterController.customer(RegisterController.java:0)
. Please see server.log for more details.

我的代码如下：
Customer.java：

package de.java2enterprise.onlineshop.model;

public class Customer {
    private String email;
    private String password;
}

registerController.java：

package de.java2enterprise.onlineshop;

import java.io.Serializable;
import javax.enterprise.context.RequestScoped;
import javax.inject.Named;
import javax.inject.Inject;
import de.java2enterprise.onlineshop.model.*;

@Named
@RequestScoped
public class RegisterController {

    private static final long serialVersionUID = 1L;

    @Inject
    private Customer customer;

    public Customer getCustomer() {
        return customer;
    }

    public void setCustomer(Customer customer) {
        this.customer = customer;
    }

    public String persist() {
        return "/index.xhtml";
    }
}

为了编译它，我必须包含cdi-api.jar作为外部库。谁在这里谁可以帮助我？谢谢大家。