Unable to Connect to GitHub.com For Cloning
You can make git replace the protocol for you
git config --global url."https://".insteadOf git://See more at SO Bower install using only https?
I had the same error because I was using proxy. As the answer is given but in case you are using proxy then please set your proxy first using these commands:
git config --global http.proxy http://proxy_username:proxy_password@proxy_ip:portgit config --global https.proxy https://proxy_username:proxy_password@proxy_ip:port