mt-tabbar切换错误: Cannot read property 'match' of null

Question

使用Mint-UI中的Tabbar时，出现Uncaught TypeError: Cannot read property 'match' of null错误。

UI图：

在点击tabbar切换tab时出现如下错误：

VM3871:1 Uncaught TypeError: Cannot read property 'match' of null
    at U (<anonymous>:1:238)
    at cn (<anonymous>:1:297)
U @ VM3871:1
cn @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property 'match' of null
    at U (<anonymous>:1:238)
    at an (<anonymous>:1:412)
U @ VM3871:1
an @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property 'match' of null
    at U (<anonymous>:1:238)
    at en (<anonymous>:1:527)
U @ VM3871:1
en @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property 'match' of null
    at U (<anonymous>:1:238)
    at cn (<anonymous>:1:297)
U @ VM3871:1
cn @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property 'match' of null
    at U (<anonymous>:1:238)
    at an (<anonymous>:1:412)
U @ VM3871:1
an @ VM3871:1
VM3871:1 Uncaught TypeError: Cannot read property 'match' of null
    at U (<anonymous>:1:238)
    at en (<anonymous>:1:527)

调用代码如下：

<template>
    <div>
        <router-view></router-view>
        <mt-tabbar fixed v-model="selected">
            <mt-tab-item id="tab1" @click.native="goTo('/main/home')">
                <img slot="icon" src="../assets/logo.png">
                首页
            </mt-tab-item>
            <mt-tab-item id="tab2" @click.native="goTo('/main/info')">
                <img slot="icon" src="../assets/logo.png">
                发现
            </mt-tab-item>
            <mt-tab-item id="tab3" @click.native="goTo('/main/learning')">
                <img slot="icon" src="../assets/logo.png">
                交流
            </mt-tab-item>
            <mt-tab-item id="tab4" @click.native="goTo('/main/industry')">
                <img slot="icon" src="../assets/logo.png">
                我的
            </mt-tab-item>
        </mt-tabbar>
    </div>
</template>

<script>
    export default {
        name: "Main",
        methods: {
            goTo(path) {
                this.$router.replace(path);
            }
        },
        data() {
            return {
                selected: "tab4",
            }
        }
    }
</script>

<style scoped>

</style>