Hello everyone,
It seems that developers are having trouble cloning the explorer.
Now I believe the blame falls on my shoulders so I will be around for the next few days answering and helping any developers interested in cloning the explorer. Then I will make the necessary changes to the documentation so that future developers can avoid the problems you guys are currently running into.
PS you can ask questions/help on this post,create a github issue or in the gitter chat
Cheers.