**NOTE: Those having trouble installing or connecting to chromedriver using Homebrew try going to https://chromedriver.storag...... and downloading it from google itself and installing it that way. Also, try updating your Xcode Developer Tools (can be done from within the app) if you're on mac, and/or make sure you add the path of chromedriver to your $PATH environment. Mine is located in User/Seph/chromedriver for the version installed from Google directly. So in my /etc/paths file (which you can run with $ nano /etc/paths) I've added /Users/Seph which tells my computer to look in that folder.