Installing Git on Mac OS X
Git is required for IguanaX to run. The easiest way to install Git on Mac is to install the XCode developer command line tools.
STEP 1: Open the Terminal Program
Access the command prompt through a program called Terminal. If you haven't used Terminal before, here is how to find it on your Mac.
STEP 2: Run xcode-select --install in the Terminal
Copy and paste the following command and press enter in the terminal:
xcode-select --install
It should like something like this, colors may vary:

STEP 3: Run the install - it will take a while
This will install the Git as part of the Apple developer tools. It's quite a large download and will take a little while to complete. The installer will advise you have power plugged in while you do the install.
Expect to see something like this:
Having trouble? See this article: Problem with upgrading Mac OS X and losing Xcode install