TypeError: o.split is not a function. (In 'o.split(" ")', 'o.split' is undefined)

Getting this error when I use
’ionic.service.core’, ‘ionic.service.analytics’,

Its on every
ng-click
or
<a menu-toggle="right">

Error:
TypeError: o.split is not a function. (In ‘o.split(" ")’, ‘o.split’ is undefined)