Why doesn't Vue js upload work because of :id="value"?

Question

Vue.js

I'm uploading photos to the database.
I work with vue js and for some reason because of :id="idUpload" The
photo just doesn't load.
The code:

<input :id="idUpload" @change="uploadFieldChange" name="img[]" :multiple="multiple" :accept="accept" type="file">

Without :id="idUpload" everything works, but without it the file upload window does not open....