
$(…).flexslider is not a function, this issue mainly occurs after upgrading the jQuery version or Multiple initialization of jQuery. Try below points will help you to sort out the issue.
- if your jQuery version is greater than jquery-1.8.3.js, call the script at bottom of page before closing </body> tag or if version equal or less than 1.8.3 place the script top of page.
- Check whether you not initialize the jQuery more than once.