Since you’re sure that you’re using the correct provisioning profile, I’m going to provide you with some documentation that I’ve found for this specific error:
- [AnswerHub: Provisioning error][1]
- [Stackoverflow: Code signing is required][2]
- [Unreal Engine 4 Forums][3]
I hope one of these solutions will help you with the issue that you’re running in to. If one does, please let us know what it is so we can keep up to date with that information in case someone runs into it later! 
Ios deploy error - Mobile - Epic Developer Community Forums
[2]: xcode4.3 - Code signing is required for product type 'Application' in SDK 'iOS5.1' - Stack Overflow
[3]: Unable to package/deploy to iOS on a MAC machine - Mobile - Epic Developer Community Forums