More than a question this is a sharing information post.
If you pull private repos via SSH, you should create an id_ecdsa because Xcode does not accept Ed25519 key, instead since github does not accept RSA-SHA1 anymore since yesterday.
https://github.blog/2021-09-01-improving-git-protocol-security-github/
To generate it use: ssh-keygen -t ecdsa -C "[email protected]"
You can follow the next steps of config from here: https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent#adding-your-ssh-key-to-the-ssh-agent
CodePudding user response：
These are end to end steps for fixing this problem:
Steps:
ssh-keygen -t ecdsa -C "[email protected]"(Same as what OP said)pbcopy < ~/.ssh/id_ecdsa.pub- Go to Github -> Login -> Settings -> SSH & GPG Keys -> type "Xcode" for the title and command paste the RSA key
- Go to Xcode -> Preferences -> Sign into the github account if not already.
- Select SSH for "Clone using"
- For SSH Key select
id_ecdsa. Make sure you select the private key, not the public.
CodePudding user response：
Not working for me. Everything looks fine, Xcode has github logged in, I created the ECDSA key, key uploaded to github... But when I reset the SPM caches it says it fails due to credentials missing.
Update: Looks like Xcode 13.2 was the one to blame. I updated to Xcode 13.3. It asked for my key's passphrase and then everything worked.