_gaq.push trackSocial undefined reference

Question

这些警告会不断弹出此代码。

_gaq.push(['_trackSocial', tracking[site].site, tracking[site].action]);

Uncaught ReferenceError: _gaq is not defined
    at Plugin.openPopup (jquery.sharrre.min.js:530)
    at Object.click (app.js:49:api.openPopup('facebook');)
    at HTMLDivElement.<anonymous> (jquery.sharrre.min.js:407:self.options.click(self, self.options);)
    at HTMLDivElement.dispatch (foundation.min.js:19:) 
    at HTMLDivElement.g.handle (foundation.min.js:19: handle||o.handler))    

为什么这个不断弹出。请协助？