I'm trying to install my prov. profile via email,itunes. When I try to tap the prov. profile in email it just directs me to settings. I believe that there should be a pop up that ask to install the prov. profile but I see none. Did I forget any important parts that cause this trouble or maybe its a bug from new iOS 8 update?
"It's not a bug, it's a feature". Apple has purposely made it so that they can no longer be installed manually by a user and must be installed by dev tools such as Xcode or device management systems such as MDM. Additionally, they are no longer shown in Profiles & Device Management and are not removable by the everyday user either.
With iOS 8, Apple has moved to the model that any flow that requires the everyday user to install, remove, or even think about provisioning profiles is flawed and that iOS should handle this automatically on the user's behalf. If the provisioning profile is expired, iOS should get rid of it automatically. As apps are deleted, iOS should properly deal with the provisioning aspects automatically. This philosophy is mentioned in WWDC 2014's talk on Managing Apple Devices around ~42 minutes in.
I guess it's a bug. I'm having the same issue with Testflight. As a workaround install the profile using Xcode's 'Devices' view.
来源：https://stackoverflow.com/questions/26133548/installing-provisioning-profile-on-ios-8-0-2