Repository not found?

How to Use GitLab
1

I’m trying to access gitlab with my ssh key pair. It rejected my key stating that the fingerprint is taken. I deleted that ssh key from my other account. But it still doesn’t accept it and deny it with “fingerprint is taken”.
I created another ssh key pair (I’m kind of forced to do that) and then I used that key in my ~/.ssh/config file. I still can’t clone or pull the repositories with that key???
I tried with https too, that access also fails. Apparently something wrong. I’m 100% sure I’m using the right key pair on the ssh config file. Such a simple thing became an issue and I don’t want to create another key pair for gitlab. I want to use my primary ssh key for gitlab access. (Again, I deleted that key from my previous account)

This is weird, below works!

ssh-agent bash -c 'ssh-add ~/.ssh/my_new_key; git pull git@gitlab.com:mygroup/myrepo.git'

but with below ssh config file

Host gitlab.com
  Hostname gitlab.com
  Preferredauthentications publickey
  User git
  IdentityFile ~/.ssh/my_new_key

access fails with

remote:
remote: ========================================================================
remote:
remote: The project you were looking for could not be found.
remote:
remote: ========================================================================
remote:
fatal: Could not read from remote repository.

??? Not sure what am I missing here?

2

adding:

	sshCommand = ssh -i ~/.ssh/my_new_key -F /dev/null

in the [core] section of git config file seems to solve the problem. (Not sure why it has to run every time but it’s okay!)
Now back to original problem, how do I still use my original key pair? I wrote above that I deleted that key from my earliest gitlab account but I still get the “fingerprint taken” error… Have l lost an account to dementia?

3

Probably you used the same key in the same gitlab instance in some other context. Perhaps you have another account. Perhaps you added it as a deploy key. It’s something like that.

It’s easy to forget that there is no user associated with a ssh key. Everyone uses the same ssh user, so only the key fingerprint is used to distinguish. Therefore the same person (you) cannot use the same key in different contexts.

–Harley