Has anyone came across this problem? [vue/no-multiple-template-root] The template root disallows 'v-for' directives.eslint-plugin-vue - vue.js

Question

It is actually a three problems in one:
[vue/no-multiple-template-root]
The template root disallows 'v-for' directives.eslint-plugin-vue
[vue/no-parsing-error]
Parsing error: Expected to be an alias, but got empty.eslint-plugin-vue
[vue/valid-v-for]
Expected 'v-bind:key' directive to use the variables which are defined by the 'v-for' directive.eslint-plugin-vue
Can anyone help me please I am so fed with searching online for it everywhere
enter code
<template>
<div class="post" v-for="post" in posts >
<div><strong>Title</strong>{{post.title}}</div>
<div><strong>Desctiption</strong>{{post.body}}</div>
</div>
</template>
<script>
export default{
data(){
return{
posts:[
{ id: 1, title: 'javascript', body: "the desctiption"},
{ id: 2, title: 'javascript2', body: "the desctiption"},
{ id: 3, title: 'javascript3', body: "the desctiption"},
]
}
}
}

Answer 1

Vue.js must have a single element at the root of the template. If you have av-for directive, when the DOM is populated there will be multiple <div> elements at the root, which Vue does not allow.
So you just need to add another <div> element to surround your v-for div.
Then, move the in posts within your quotes and add a :key
<template>
<div>
<div class="post" v-for="post in posts" :key="post.id">
<div><strong>Title</strong>{{post.title}}</div>
<div><strong>Desctiption</strong>{{post.body}}</div>
</div>
</div>
</template>

Answer 2

In vue two you should one root element, using v-for loop will render multiple elements in the template like :
<div class="post" >
...
</div>
<div class="post" >
...
</div>
to avoid this add an extra div and bind key to the post id :key="post.id":
<template>
<div class="posts">
<div class="post" v-for="post in posts" :key="post.id">
<div><strong>Title</strong>{{post.title}}</div>
<div><strong>Desctiption</strong>{{post.body}}</div>
</div>
</div>
</template>