Matt
If you update to the latest you can get opencv installed with Cocoapods...
@GhostFlying, once you run `pod install` you need to use the `ARuler.xcworkspace` (not `ARuler.xcodeproj`) to build and run the project... That should fix the error you're seeing.
👍 Great stuff, we'll see you in class tomorrow!
> The only thing that I find difficult to explain to my students are the didSet, willSet of a computed properties, and the fact that oldValue and newVale are already...