javax.el.PropertyNotFoundException 这是怎么回事？？？

org.apache.jasper.JasperException: javax.el.PropertyNotFoundException: Property 'startTime' not found on type seckill.bean.SeckillBean
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:561)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:477)

<c:forEach items="${list}" var="sk">
                    <tr>
                        <td>${sk.name}</td>
                        <td>${sk.number}</td>
                        <td>
                            <fmt:formatDate value="${sk.startTime}" pattern="yyyy-MM-dd HH:mm:ss" />
                        </td>
                        <td>
                            <fmt:formatDate value="${sk.endTime}" pattern="yyyy-MM-dd HH:mm:ss" />
                        </td>
                        <td>
                            <fmt:formatDate value="${sk.createTime}" pattern="yyyy-MM-dd HH:mm:ss" />
                        </td>
                        <td><a class="btn btn-info" href="/seckill/${sk.seckillId}/detail" target="_blank">详情</a></td>
                    </tr>
                </c:forEach>

package seckill.bean;
import java.util.Date;
public class SeckillBean {
 private long seckillId;
 
 private String name;
 
 private int number;
 
 private Date createTime;
 
 private Date startTime;
 
 private Date endTime;
 public long getSeckillId() {
  return seckillId;
 }
 public void setSeckillId(long seckillId) {
  this.seckillId = seckillId;
 }
 public String getName() {
  return name;
 }
 public void setName(String name) {
  this.name = name;
 }
 public int getNumber() {
  return number;
 }
 public void setNumber(int number) {
  this.number = number;
 }
 public Date getCreateTime() {
  return createTime;
 }
 public void setCreateTime(Date createTime) {
  this.createTime = createTime;
 }
 public Date getStartTiem() {
  return startTime;
 }
 public void setStartTiem(Date startTiem) {
  this.startTime = startTiem;
 }
 public Date getEndTime() {
  return endTime;
 }
 public void setEndTime(Date endTime) {
  this.endTime = endTime;
 }
 @Override
 public String toString() {
  return "SecKillBean [seckillId=" + seckillId + ", name=" + name + ", number=" + number + ", createTime="
    + createTime + ", startTiem=" + startTime + ", endTime=" + endTime + "]";
 }
 
 
}