jquery - Can't get magnific popup to work, two javascript errors -

i trying make lightbox gallery , have used example source code.

here documentation read over: http://dimsemenov.com/plugins/magnific-popup/documentation.html

uncaught typeerror: undefined not function  uncaught referenceerror: $ not defined  

i not sure errors mean or them.

in video tutorial watched, said jquery conflict being potential problem. on different page of website, used kwicks sliding menu (which used jquery). that's thing can think of.

i appreciate able give me!

thank you! there no more errors, need make hovering on image work zooming in magnifying cursor.

have made hovering work, need make zooming in magnifying cursor work. have attached page of what cursor when hovers.

example: http://dimsemenov.com/plugins/magnific-popup/

have figured out zoom cursor! help!

the documentation of plugin magnific popup using suggests -

including files

<!-- jquery 1.7.2+ or zepto.js 1.0+ --> <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>   <!-- magnific popup core js file --> <script src="magnific-popup/jquery.magnific-popup.js"></script> 

remember : need include jquery file reference, plugin work; rather every jquery plugin. , in specified order. sole reason behind $ not defined , undefined in not function.