I had the exact same problem as you Jie, I discovered as Paul mentioned that I needed to make the path relative, however in addition to that solution I had to also modify the map jquery file I was using and thus replace "jquery" with $ just as follows:
<----! Original file: ->
jquery.fn.vectorMap('addMap'..)
<----! Modified file: ->
$.fn.vectorMap('addMap'...)
Feel free to refer to the following forum post: https://forum.jquery.com/topic/trying-to-get-jvectormap-working