javascript - How to resolve Bad mansory element null? -

javascript - How to resolve Bad mansory element null? -

google chrome reports follow js error in console on bootstrap theme:

bad masonry element: null masonry.min.js:32 h masonry.min.js:32 f masonry.min.js:45 (anonymous function) jquery.wp.custom.min.js:2l jquery.js:4c.firewith jquery.js:4 x.extend.ready jquery.js:4s

i not sure start tracking downwards error. help appreciated. cheers.

javascript jquery twitter-bootstrap