请问面包屑warning:Only accepts Breadcrumb.Item and Breadcrumb.Separator as it's children该怎么解决?

img
很奇怪,为什么面包屑会报这个warning,求解


<template>
  <layout>
  <div id="layout-inner">
    <a-breadcrumb style="margin:0;margin-top:10px;margin-left:16px;text-align: left">
      <a-divider type="vertical" style="background-color: #FF944B;width: 3px;border-radius: 8px"/>
      <router-link :to="{ path: '/readPersonalInfo/:data'}">
        <a-breadcrumb-item>个人中心</a-breadcrumb-item>
      </router-link>
        <a-breadcrumb-item>查看个人信息</a-breadcrumb-item>

    </a-breadcrumb>

    <a-layout-content
        :style="{ margin: '13px 16px', padding: '24px', background: '#fff', minHeight: '520px' }"
    >
      <div id="content">

        <div id="personalInfo">
            <span class="InfoTitle">
              个人信息
            </span>

<!--          <router-link :to="{ path: '/changePersonalInfo/:data',query: { data: this.infoForm.form }}" replace>-->
            <button class="changeInfo" @click="changePersonalInfo">修改信息</button>

          <button class="changePassword" @click="showModal">修改密码</button>

          <a-modal v-model="visible" title="修改密码">


            <a-form-model ref="changePasswordForm" :model="changePasswordForm.form" :rules="changePasswordForm.rules">
              <a-form-model-item  label="新密码" prop="newPassword">
                <a-input v-model="changePasswordForm.form.newPassword" type="password" placeholder="请设置字符串长度为6~8位的密码"/>
              </a-form-model-item>
              <a-form-model-item  label="确认密码" prop="confirmPassword">
                <a-input v-model="changePasswordForm.form.confirmPassword" type="password" />
              </a-form-model-item>


            </a-form-model>


            <template slot="footer">

              <a-button  @click="resetForm('changePasswordForm')">重置</a-button>

              <a-button type="primary" @click="changePassword(changePasswordForm.form.newPassword)">提交</a-button>
            </template>
          </a-modal>

          <div id="personalInfoContent">
            <div id="formPart">
              <a-form-model  ref="infoForm"
                             :model="infoForm.form"
                             :style="{marginTop:'10px'}"
                             :label-col="layout.labelCol"
                             :wrapper-col="layout.wrapperCol"
              >
                <a-form-model-item label="姓名" ref="userName"  class="formItem">
                  {{ this.infoForm.form.userName }}
                </a-form-model-item>


                <a-form-model-item label="手机号码" ref="userPhone"  class="formItem">
                  {{ this.infoForm.form.userPhone }}

                </a-form-model-item>

                <a-form-model-item label="用户角色" ref="userRole"  class="formItem">

                  <div v-if="this.identity===0">团队用户</div>
                  <div v-if="this.identity===1">管理员</div>
                </a-form-model-item>

<!--                <a-form-model-item label="学号" ref="userId"  class="formItem">-->
<!--                  {{ this.infoForm.form.userId }}-->
<!--                </a-form-model-item>-->


                <a-form-model-item label="邮箱" ref="userEmail" class="formItem">
                  {{ this.infoForm.form.userEmail }}
                </a-form-model-item>



                <a-form-model-item label="性别" ref="userSex"  class="formItem">
                  <div v-if="this.infoForm.form.userSex===1"></div>
                  <div v-else></div>

                </a-form-model-item>







                <a-form-model-item label="学院" rf="academy"  class="formItem">
                  {{ this.infoForm.form.academy }}
                </a-form-model-item>

                <a-form-model-item label="专业" ref="profession" class="formItem">
                  {{ this.infoForm.form.profession }}
                </a-form-model-item>


                <a-form-model-item label="年级" ref="userClass" class="formItem">

                  <div v-if="this.infoForm.form.userClass===1">
                    大一
                  </div>
                  <div v-else-if="this.infoForm.form.userClass===2">
                    大二
                  </div>
                  <div v-else-if="this.infoForm.form.userClass===3">
                    大三
                  </div>
                  <div v-else-if="this.infoForm.form.userClass===4">
                    大四
                  </div>
                  <div v-else-if="this.infoForm.form.userClass===5">
                    研究生及以上
                  </div>

                </a-form-model-item>

                <a-form-model-item label="岗位" ref="post" class="formItem">

                  <div v-if="this.infoForm.form.post===0">
                    未分组
                  </div>
                  <div v-else-if="this.infoForm.form.post===1">
                    前端
                  </div>
                  <div v-else-if="this.infoForm.form.post===2">
                    后端
                  </div>

                </a-form-model-item>


              </a-form-model>
            </div>

            <div id="avatarPart">
              <a-form-model-item label="头像" :style="{display:'flex'}">

                  <img :src=this.imageUrl alt="avatar.png" :style="{width:'100px',height:'100px'}"/>

              </a-form-model-item>
            </div>

          </div>



        </div>
      </div>
    </a-layout-content>
  </div>
  </layout>


</template>

<script>
import { mapState } from 'vuex'
import layout from '@/layout/index'
export default {
name: "read",
  data(){

    const validateConfirmPassword= (rule, value, callback) => {
      if (value === '') {
        return callback(new Error('请再次输入密码'));
      } else if (value !== this.changePasswordForm.form.newPassword) {
        return callback(new Error("前后密码输入不一致"));
      } else {
        callback();
      }
    };

    return{
      visible:false,

      changePasswordForm:{
        form:{
          newPassword:'',
          confirmPassword:'',

        },
        rules:{
          newPassword:[{ required: true, message: "请输入密码", trigger: "blur" },
            { min: 6, max: 8, message: '密码格式不正确', trigger: 'blur' },],

          confirmPassword: [{ required: true, message: "请再次输入密码", trigger: "blur" },
            {validator: validateConfirmPassword, trigger: 'blur'}]
        },

      },

      infoForm: {
        form: {
          userName:' ',
          userPhone: ' ',
          userRole: ' ',
          userEmail:' ',
          // userId:' ',学号
          userSex:null,
          profession:' ',
          userClass:null,
          academy:' ',
          post:null,


        },
      },
      layout: {
        labelCol: { span: 3 },
        wrapperCol: { span: 6},
      },
      itemWrapper: { span: 24 },
      // 文件上传
      loading: false,
      imageUrl:require("../../assets/images/avatar.jpg")

    }
  },
  components: {
    layout
  },
  computed: {
    ...mapState({
      token: state => state.token,
      identity:state => state.identity
    }),

  },
  mounted() {

    // 怎样写的更美观
    this.$store.dispatch('getPersonalInfo').then(() => {
      console.log(' this.$store.getters.userName:', this.$store.getters.userName)
      this.infoForm.form.userName  = this.$store.getters.userName
      this.infoForm.form.userPhone  = this.$store.getters.userPhone
      this.infoForm.form.userEmail  = this.$store.getters.userEmail
      this.infoForm.form.userId  = this.$store.getters.userPhone
      this.infoForm.form.userSex  = this.$store.getters.userSex
      console.log("this.infoForm.form.userSex:",this.infoForm.form.userSex)
      this.infoForm.form.profession  = this.$store.getters.profession
      this.infoForm.form.userClass  = this.$store.getters.userClass
      this.infoForm.form.academy  = this.$store.getters.academy
      console.log(' this.$store.getters.post:', this.$store.getters.post)
      this.infoForm.form.post  = this.$store.getters.post

    })

  },
  methods:{
    showModal() {
      this.visible = true;
    },
    changePassword(newPassword){
      console.log("新密码:"+newPassword)
      alert("新密码:"+newPassword)
    },
    resetForm(formName) {
      this.$refs[formName].resetFields();

    },
    changePersonalInfo(){
     
      this.$router.push({ name: 'changePersonalInfo',  params: {data: this.infoForm.form}})
    },

  }
}
</script>


<style scoped>
@import "index.css";
</style>


请问该如何解决?(基于vue框架)