Using the command line:
Enter ls -al ~/.ssh
to see if existing SSH keys are present.
In the terminal is shows: No directory exist
Then generate a new SSH key
Step 1.
ssh-keygen -t rsa -b 4096 -C "[email protected]"
step 2.
Enter a file in which to save the key (/Users/you/.ssh/id_rsa): <here is file name and enter the key>
step 3.
Enter passphrase (empty for no passphrase): [Type a password]
Enter same passphrase again: [Type password again]