In the first Reinforcement Exercise (1.2.1) of Fundamentals of Magento 2 Development v2.0 - Unit One (FREE), it states to go to lib/internal/Magento/Framework/App/Bootstrap.php file to throw an exception. This path does not exist from the root of the site.
The only directories in the lib/internal/Magento folder are
Cm Credis LinLibertineFont
I’m really interested in purchasing the full course, but the training material isn’t matching the 2.0.5 version of the site. Can you please assist? Maybe this directory is in a different path?