11.1. Frequently Asked Questions

1. I am trying to clone a repository on HPC but I get the following error:

   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   @    WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!     @
   @@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
   IT IS POSSIBLE THAT SOMEONE IS DOING SOMETHING NASTY!
   Someone could be eavesdropping on you right now (man-in-the-middle attack)!
   It is also possible that a host key has just been changed.
   The fingerprint for the RSA key sent by the remote host is
   ...
   

   This can happen if you do not add your ssh key to your github account. Follow these links to add your ssh key to your github account:

   • Checking for existing SSH keys

   • Generating a new SSH key and adding it to the ssh-agent

   • Adding a new SSH key to your GitHub account

2. I am trying to git push (git pull or git fetch) however I get the following error:

   (gnome-ssh-askpass:134672): Gtk-WARNING **: 07:19:13.800: cannot open display: 
   error: unable to read askpass response from '/usr/libexec/openssh/gnome-ssh-askpass'
   Username for 'https://github.com':
   

   This error is due to the fact that you are trying to use https instead of ssh. You can change the remote url to ssh by running the following command:

   git remote set-url origin git@github.com:[Github account]/[Github repository].git
   

   Replace [Github account] with your github account and [Github repository] with the repository you are trying to push to.