A strange bug

[IBAS0742]

I write my template as follow

<template>
    <div></div>
</template>

<script>
    export default {
        name: "##name##"
    }
</script>

<style scoped>
</style>

And I have not found any more doc to tell me can not to write like that template, when my webstorm initialize over, I found my webstorm can not recognize any one HTML tag or HTML tags' attribute. The beginning, I only know when I write one attribute with '=', my webstorm fail to add '""' follow, and when I write some word follow, it add "" follow.

<div id=my""></div>

I can not found any help from google or another place, and I spent a lot of time discovering the cause of the problem.