Just pointing out that the link to the new Loading Controller is for the upcoming release, not the stable beta 10 release. Use the link @rajpatangay posted
As from beta-11 changes are made with overlay components. They will be initialized using their own overlay controller.
From beta-11 the overlay components i.e. alert, modal, loading and popover having their own controller and now they are separated from NavController. So there is no need of navController instance to create overlay components.
if this does not work please update ionic to latest version as it seems you are using 2.0.0-beta.10[quote=“vks_gautam1, post:9, topic:57206”]
“ionic-angular”: “2.0.0-beta.10”,
[/quote]
Its working in my project which is in rc3
btw you should consider updating as plenty of changes has been done to make ionic2 better. please refer to the changelog