Valid identity .. for selected profile

[aaaha]

Hi there,

I'm completely new to LiveCode and my very first goal is to have one button show on my actual iPhone.
While trying to save as a standalone application I received this message:

"There was an error while saving the standalone application
could not find a valid identity to use for the selected profile

Up to this point I did or have this:
- Standalone application settings / iOS / Internal App ID = com dot yourcompany dot yourapp
- Standalone application settings / iOS / "MyfirstnameMylastname"
- I'm able to test my app with the test-button on the top far right, no problem.
- Xcode / Preferences / Accounts => One team with "Agent" role, iOS development and distribution certificate.
- Apple developer site => Both iOS development and distribution certificates.

I was working my self through a lesson (I am not entitled to use links in the text so sorry for not linking) and got stuck at the point where it said "Once you have registered appropriately as an iPhone developer and setup your certificate and obtained a provisioning profile..."

What am I doing wrong? Is there a more in depth lesson or guidance I could follow? Thanks very much in advance!

I am using
- LiveCode 8 . 1 . 6 . 14032
- Xcode 8 . 3 . 3 (8E3004b)
- MacOS 10 . 13

[jmburnod]

Welcome aaaha,
Did you check LC -> Preferences -> Mobile Support ?
Best regards
Jean-Marc