Hi Steve, 

For some reason, the process is failing when trying to connect to GitHub. As the 'errno' is 'No error', this suggests that something's going wrong with your with your git setup. The first thing to check is that you've got git installed correctly by typing 'git' in a command prompt.

If not, please have a look through this page, which should guide you through everything you need to do when installing.

You can also check out Michael Memory's tutorial video, which gives you a more visual walkthrough.