bootstrap drop down does not work when i link my vue.js in my Laravel application

My Bootstrap dropdown in my navigation was working perfectly but when i link my vue js in my main layout suddenly it does not work. i have been looking solution on the net but i cant seem to find one. I really need help. Any help would be appreciated. Thanks.

Here is how i linked my jquery:

<script src=""></script>

Here is how i linked my vue:

<script src="/js/app.js"></script>

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