[MAC] Install the Xcode Command Line Tools
Xcode is Apple's development bundle and can be installed by running the following command in terminal (don't type the $ sign):
$ xcode-select --install- Follow the installations step in the pop-up window.
- Once Xcode is installed, start it up. The tools we need will not work unless the app has run once, and you’ve accepted the license agreement. You don’t need to do anything with the app. Just start it up (it might take a while to run the first time, even on a fast machine), click agree, and then you can exit from it.
- Don't worry if you get the following message. It means it is already installed.
xcode-select: error: command line tools are already installed, use "Software Update" to install updates