I made my old mac developer and installer certificates on my old macbook. I got a new macbook pro in October and while it appears code signing works without error my apps do not actually launch. Code signing with my new Macbook Pro gives an error of “Unidentified Developer” when I launch my newly code signed apps.
What should I do? Should I delete my old certificates from the Apple website? Does this do anything really bad? Or? I am baffled. Please help!
Try this: Launch Xcode, go to the preferences, add your Apple ID under “Accounts” and download your certificates (hit the “view details” button). Codesign your app again. Launch it.
When I use Xcode, it asks if I want to “revoke and request” certificates.
Is this dangerous? Will my current apps out there still work?
[Re-Creating Certificates and Updating Related Provisioning Profiles]
I see it says this:
Important: Re-creating your development or distribution certificates doesnt affect apps that youve submitted to the store nor does it affect your ability to update them.
I am a single user developer. No team. Just me on my Macbook. All I care is that my apps on the app store and exiting apps all suddenly don’t stop working because I did something stupid on the certificate website.
I remember long ago making a file in Keychain.app, importing to apple’s cert website, and then redownloading a key. Is that still possible? Is that what I must do?
I appreciate the link, but I seriously feel so overwhelmed with this stuff. I need a 1st graders guide to this stuff. 
