【报Bug】picker 中 Object(...) is not a function问题

示例代码：

    <view class="info-box lighter-icon">  
        <view class="contents">  
            <view class="item u-f u-f-jsb u-f-ac" v-for="(item,index) in lists" :key="index">  
                <text>{{item.name}}</text>  
                <view class="right u-f u-f-ac">  
                    <template v-if="item.name==='姓名'">  
                        <input type="text" v-model="item.value" :focus="focu" @tap="focu=true">  
                    </template>  
                    <!-- 性别 -->  
                    <picker @change="bindPickerChange" :value="index" :range="array" v-else-if="item.name==='性别'" mode="selector">  
                        {{item.value}}  
                    </picker>  
                    <!-- 生日 -->  
                    <picker class="date" @change="bindDateChange" :value="date" :start="startDate" :end="endDate" v-else-if="item.name==='生日'" mode="date">  
                        {{date}}  
                    </picker>  
                    <template v-else>  
                        <text v-if="item.value" :class="[item.isedit||item.imgUrl?'':'par']">  
                            {{item.value}}  
                        </text>  
                    </template>  
                    <img :src="avatar" v-if="item.imgUrl" @tap="uploadImg">  
                    <!-- <img :src="recom_avatar"  v-if="item.imgUrlRec" > -->  
                    <text class="iconfont iconiconleft" v-if="item.isedit||item.imgUrl"></text>  
                </view>  
            </view>  
        </view>  
        <text class="mix-btn u-f u-f-jsc" @click="Confirm">保存</text>  
    </view>  
</template>  

<script>  
    import {  
        pathToBase64,  
        base64ToPath  
    } from '@/common/js/image-base64.js'  
    export default {  
        data() {  
            const currentDate = this.getDate({  
                format: true  
            })  

            return {  
                avatar: '',  
                userInfo: '',  
                focu: false,  
                lists: [{  
                        name: '头像',  
                        value: '',  
                        imgUrl: true  
                    },  
                    {  
                        name: '登录账号',  
                        value: ''  
                    },  
                    {  
                        name: '姓名',  
                        value: '',  
                        isedit: 'true'  
                    },  
                    {  
                        name: '性别',  
                        value: '',  
                        isedit: 'true',  
                    },  
                    {  
                        name: '生日',  
                        value: '',  
                        isedit: 'true',  
                    },  

                    {  
                        name: '推荐人',  
                        value: '',  
                        imgUrlRec:true  
                    }  
                ],  
                tempFilePath: '',  
                array: ['男', '女'],  
                index: 0, //性别所选中的  
                date: currentDate,  
                // recom_avatar:''  
            };  
        },  
        components: {},  
        computed: {  
            startDate() {  
                return this.getDate('start')  
            },  
            endDate() {  
                return this.getDate('end')  
            }  
        },  

        methods: {  
            // 绑定性别改变  
            bindPickerChange(e) {  
                this.index = e.target.value  
                this.lists[3].value = this.array[e.target.value]  
            },  
            // 绑定日期改变  
            bindDateChange(e) {  
                this.date = e.target.value  
            },  
            // 格式化日期  
            getDate(type) {  
                const date = new Date();  
                let year = date.getFullYear();  
                let month = date.getMonth() + 1;  
                let day = date.getDate();  
                if (type === 'start') {  
                    year = year - 60;  
                } else if (type === 'end') {  
                    year = year + 2  
                }  
                month = month > 9 ? month : '0' + month  
                day = day > 9 ? day : '0' + day  
                return `${year}-${month}-${day}`  
            },  
        },  
    }  
</script>  

<style lang='scss' scoped>  
    .date {  
        position: relative;  
        top: 8rpx;  
    }  
    .info-box {  
        background: #f5f5f5;  
        .contents{  
            background: #ffffff;  
            padding: 0 30rpx;  
        }  

        img {  
            width: 100rpx;  
            height: 100rpx;  
            border-radius: 100%;  
        }  

        .item {  
            padding: 20rpx 0;  
            color: #444444;  
            font-size: 30rpx;  
            border-bottom: 1px solid #f5f5f5;  
            >text{  
                color: #000000;  
            }  

            .right {  
                color: #999999;  

                input {  
                    text-align: right;  
                    font-size: 28rpx;  
                }  
                .iconiconleft{  
                    font-size: 28rpx;  
                    color: #777777;  
                }  
            }  
        }  
    }  
    picker{  
        font-size: 28rpx;  
    }  

    .par {  
        padding-right: 30rpx;  
        font-size: 30rpx;  
    }  
    .mix-btn{  
        height: 80rpx;  
        line-height: 80rpx;  
        font-size: 30rpx;  
        width: 90%;  
        margin: 50rpx auto;  
        border-radius: 0;  
    }  
</style>

操作步骤：

点击选着日期会出现弹出成

预期结果：

预期是没问题的

实际结果：

chunk-vendors.ebbb9257.js:277 [system] TypeError: Object(...) is not a function  
    at o._l10nColumn (chunk-vendors.ebbb9257.js:277:207935)  
    at o.i (chunk-vendors.ebbb9257.js:277:198525)  
    at o.e._render (chunk-vendors.ebbb9257.js:122:24505)  
    at o.i (chunk-vendors.ebbb9257.js:122:28596)  
    at ni.get (chunk-vendors.ebbb9257.js:122:31553)  
    at ni.run (chunk-vendors.ebbb9257.js:122:32286)  
    at Xn (chunk-vendors.ebbb9257.js:122:30493)  
    at Array.<anonymous> (chunk-vendors.ebbb9257.js:122:13024)  
    at ut (chunk-vendors.ebbb9257.js:122:12419)  
（匿名） @ chunk-vendors.ebbb9257.js:277  
Array.isArray.t.onError.length.t.onError @ chunk-vendors.ebbb9257.js:277  
tt @ chunk-vendors.ebbb9257.js:122  
ki.__call_hook @ chunk-vendors.ebbb9257.js:122  
t.config.errorHandler @ chunk-vendors.ebbb9257.js:277  
nt @ chunk-vendors.ebbb9257.js:122  
et @ chunk-vendors.ebbb9257.js:122  
e._render @ chunk-vendors.ebbb9257.js:122  
i @ chunk-vendors.ebbb9257.js:122  
ni.get @ chunk-vendors.ebbb9257.js:122  
ni.run @ chunk-vendors.ebbb9257.js:122  
Xn @ chunk-vendors.ebbb9257.js:122  
（匿名） @ chunk-vendors.ebbb9257.js:122  
ut @ chunk-vendors.ebbb9257.js:122  
Promise.then（异步）  
rt @ chunk-vendors.ebbb9257.js:122  
ht @ chunk-vendors.ebbb9257.js:122  
ei @ chunk-vendors.ebbb9257.js:122  
ni.update @ chunk-vendors.ebbb9257.js:122  
me.notify @ chunk-vendors.ebbb9257.js:122  
set @ chunk-vendors.ebbb9257.js:122  
ii.set @ chunk-vendors.ebbb9257.js:122  
（匿名） @ chunk-vendors.ebbb9257.js:277  
setTimeout（异步）  
_show @ chunk-vendors.ebbb9257.js:277  
tt @ chunk-vendors.ebbb9257.js:122  
n @ chunk-vendors.ebbb9257.js:122  
a._wrapper @ chunk-vendors.ebbb9257.js:122