Select2 is not working on dynamically added field in Vue.js - vue.js

Question

In my vue laravel application ...i have dynamicllay added some select option by onclick function.
For the intial select option select2 is working fine but when i am trying to added more field dynamically the select 2 is not working . i have used (npm install v-select2-component --save )
but unfortunatlley does not work
<script>
import Select2 from 'v-select2-component';
export default {
components: {Select2},
data(){
return{
event_Category_Remove: [],
index: 0,
eventsElement_id: [],
}
},
methods:{
addEvent() {
this.eventsElement_id = [];
this.event_Category_Remove.push({
id: this.index,
name: "ecr" + this.index,
});
this.index++;
},
/** ========= Remove Event ========= */
removeEvent(index) {
this.event_Category_Remove.splice(index, 1);
},
}
</script>
<template>
<div
class="
form-group
row
without-form-background
mb-2
"
>
<label class="col-md-2 label-control" for="weight"
>Event (can be multiple)</label
>
<a class="text-primary" #click="addEvent">
<i>Add</i> <i class="fa fa-plus"></i>
</a>
</div>
<!-- ======== Adding Multiple Event Button End ======== -->
<!-- ///////////////////// -->
<!-- ======== Event Start ======== -->
<div
class="event_Category_Remove"
v-for="(ecr, index) in event_Category_Remove"
:key="ecr.id"
:id="'eventChild_' + index"
>
<div
class="
form-group
row
without-form-background
mb2
"
>
<label class="col-md-2 label-control" for="name"
>Event</label
>
<div class="col-md-10">
<select
:name="'event_' + index"
id=""
class="form-control"
>
<option
name="event"
v-for="event in event"
:key="event.id"
:value="event.id"
:selected="event.id == event_selected"
>
{{ event.name }}
</option>
</select>
</div>
</div>
<!-- ======== Event Ends ======== -->
<!-- ////////////////////// -->
<!-- ======== Category Start ======== -->
<div
class="
form-group
row
without-form-background
mb2
"
>
<label class="col-md-2 label-control" for="name"
>Category</label
>
<div class="col-md-10">
<Select2
:name="'category[]_' + index"
id=""
class="form-control multiselect"
multiple="multiple"
tabindex="-1"
selected
value="cate.id"
>
<option
v-for="cate in categoryarr"
:key="cate.id"
:value="cate.id"
:selected="
categoryarr_selected.includes(
String(cate.id)
)
"
>
{{ cate.title }}
</option>
</Select2>
</div>
</div>
<!-- ======== Category End ======== -->
<!-- /////////////// -->
<!-- ======== Remove Button1 Start ======== -->
<div
class="form-group without-form-background mb2"
>
<button
class="btn btn-danger text-white"
#click="removeEvent(ecr.id)"
>
Remove
</button>
<hr class="bg-danger" />
</div>
</div>
</template>