iOS Untrusted Developer error when testing app
I am trying to make my own iOS applications by using Xcode 7 and iOS 9.0. I have successfully been able to install the app on my own iPod by following Xcode 7 develop for iOS without developer account however when I run the application I get this error:
I had a quick look in the Settings app but cannot find a way to allow this application that I made. How would I 'trust' this application running iOS 9?
Solution 1:
Enterprise and other certificates have to be manually trusted on iOS 9 when they didn't have to on iOS 8 and earlier.
- Open the Settings app
- Open General
- Open Profiles (you won’t see this until after the first profile is installed on an iOS device)
- Choose the affected profile and trust it
If you don't see "Profiles & Device Management" then your device needs to reinstall the app or get the appropriate profile from MDM / other enrollment. Also, if your network or system blocks any outbound traffic to Apple servers for time sync, OCSP/CRL or notarization checks, you will see errors or potentially have other challenges to run apps.
Solution 2:
On later versions (ios 14.4 and xcode 12.4) I've fixed with the following
- Open the Settings app
- Open General
- Open Device Management
- Click on Apple Develpment
From here you should be able to trust the app. :-)
Solution 3:
Alternative way to fix this error:
- Open Xcode app on your Mac
- Navigate to Window > Devices
- Right click on your device > "Show Provisioning Profiles..." > and delete the profiles
- Delete the installed app on your device
- Now rebuild and install the app again
Note: In my case only "Settings > "General" > "Profiles" was shown instead of "Profiles & Device Management", and these steps solved the issue.
Solution 4:
There's a also Xcode solution for this problem.
- Open Xcode app on your Mac.
- Navigate to Window > Devices
- Select your device and delete the profiles.
- Delete the installed app on your device.
- Now rebuild the certificate and install the app again.
http://www.iphonehelping.com/7/how-to-fix-untrusted-enterprise-developer-error-ios-9-1