git hub Permission denied (publickey), but only for one respository-CodePudding

I have many repositories(sites) within my github account, I used 2 different ones today, making branches, pushing merging..

I went to a third repository today (still within my git account like other 2). and I get

[email protected]: Permission denied (publickey).
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

The repository exists

I used 2 other from same account with last hour and still can even now. They all have exact same persmissions

Why is only one site giving me this error and how can I fix?

I tried cloning it fresh, but it wont let me clone.

I have multiple SSH keys, could it be possible that one repository is using one, and the rest use the other (even thought I never configured them this way, but this site is oldest)? Both keys are saved in github config

CodePudding user response：

Try with:

git -c core.sshCommand "ssh -Tv" clone [email protected]:me/myThirdRepo

You will see which key is used by default.

If it is not the right key, you would need a ~/.ssh/config file (as seen here) to reference the right private key.

CodePudding user response：

Github support got back to me (i had to pay them).

They recommend you use this in /.ssh/config, despite their help docs saying something else. Anyway, it worked

Host github.com *.github.net *.githubapp.com
  ForwardAgent no
  User yourusename
  IdentityFile ~/.ssh/id_ed25519