Unable to get Team working

Would like to test my IOS app no a device but have not been to get it to work.

I have delete the development certificates and go new one using XCode.
Have renewed the device setting, on apple dev.
Have tried to follow steps outlined in Xojo webinar-deploying-ios-apps, but XCode has been changed, so did the best I could.

Is there anything I need to check , like does the bundle ID have to be registered?

I had the same problem and found that the iOS Provisioning Profile created by Xcode wasn’t working correctly. I manually created a provisioning profile and everything suddenly worked. All the gory details of what I did are in this thread: