Source: hexojs/hexo-deployer-git#71
error: failed to execute prompt script (exit code 1) fatal: could not read Username for 'https://github.com': Invalid argument
1- Create a ssh key using Git Bash using following command
ssh-keygen -t rsa -b 4096 -C "[email protected]"
After running this command just install the by default options and enter the password balnk when it prompts.