I'm having trouble with adding the acts_as_taggable_on_steriods in chapter 10. I tried to install per the book before I discovered the change in the errors on the webpage.
I was able to rollback the migration, but I can't get acts_as_taggable_on_steroids to install from github. Due to the spam controls on this forum I apparently can't post website addresses. As such I've had to edit them out of the error messages below.

I have git installed, but get the following:
If I use the ruby script/plugin install command from the book corrections page
I get the following:
Initialized empty Git repository in .git/
warning: Option "depth" is ignored for "github jviney" /acts_as_taggable_on_steriods.git
fatal: Couldn't find remote ref HEAD

If I change the 'http' to 'git' in the install command I get the following:
Initialized empty Git repository in .git/
fatal: The remote end hung up unexpectedly