Staging failed with "Error - page: '/ask.php', is referencing a widget that does not exist (widget path: )" why?
Customer Portal CPv2 and CPv3.x.x
The error is generated because of incorrect syntax when calling the widgets.
While this will work in Development mode, when you go to stage your code the optimizer will catch the incorrect syntax and throw the above error.
Check your syntax for how you are calling the widgets.
This is the proper syntax to call any of the widgets.
<rn:widget path="standard/X/XX" />