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Discussion on: Possible solution for error - Bootstrap modal: is not a function

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The $(…).modal is not a function is usually caused because scripts are loaded in the wrong order . The browser will execute the scripts in the order it finds them. If in a script you attempt to access an element that hasn't been reached yet then you will get modal is not a function error. Make sure that you don't have a script above one that it requires. For example, bootstrap depends on jQuery , so jQuery must be referenced first. So, you must called the jquery.min.js and then bootstrap.min.js like the following:

<script src="/jquery-x.x.x.min.js"></script>
<script src="/bootstrap.min.js"></script>

Multiple jQuery instances

Sometimes this warning may also be shown if jQuery is declared more than once in your code. The second jQuery declaration prevents bootstrap.js from working correctly.