问题
I'm attempting to migrate an Xcode project to another computer. It gives me the warning "Warning: unable to build chain to self-signed root for signer" and when it runs it crashes immediately similarly to what is shown in this Stack Overflow:
App working on simulator but not on iPhone( dyld`__abort_with_payload dyld`_dyld_start)
My issue seems similar to what is described on the Apple Developer Forums here: https://forums.developer.apple.com/thread/86161
and similar to what is described on this Stack Overflow: Xcode ios app development code signing
except the suggestions of deleting certificates and re-adding them, re-adding my account and restarting didn't seem to help. I have removed my developer cert for the second time and now I don't see it coming back, and I'm at a loss of knowing how to get it back since my dev portal doesn't appear to have a place to download it like it used to.
I've also tried deleting the derived data folder several times.
e: I've determined ANY project on this computer results in the same crash and warning.
回答1:
I have been facing same issue for days now. Finally i solved it by just changing my root CA from Key Chain Access. View in System/ Login key chains. which certificate authority is being used as signer for your personal provisioning profile's certificate. Enter a valid CA certificate and you are good to go! Hope it helps. Ciao!
回答2:
I had the same problem and fixed with below steps:
- Open Keychain Access
- Select login, and click Certificates
- Double click Apple Worldwide Developer Relations Certificate Authority
- Open trust section, and set to "Use System Defaults" from "Always Trust"
- Clean the build folder and run
来源：https://stackoverflow.com/questions/48911289/warning-unable-to-build-chain-to-self-signed-root-for-signer-warning-in-xcode