Why i got error live search

[johanriyanto]

Please Help Me,

Why i'm got error when i'm using select live search.
showing double selected but i'm not using multiple select.

<select class="selectpicker budget_code_popup" id="budget_code_popup" name="budget_code_popup" data-live-search="true">
<option data-tokens="admin">Admin</option>
 <option data-tokens="user">User</option>
<option data-tokens="user">Editor</option>
</select>

Error like this.

[qant]

Please provide a working example to see this in action, because this part of code works just fine here
https://codesandbox.io/s/vigorous-kalam-1vlnm?file=/index.html

[johanriyanto]

Ok thanks @qant. But why i still get error. Uncaught TypeError: $(...).selectpicker is not a function
i'm using Laravel.