You can find the completed project under the course resources: https://www.appbrewery.co/p/ios-course-resources/

If you've got some niggling bugs or there is something wrong with your code that you can't figure out, compare your code against the finished version of the app.

Remember that if you try to run the app in the Simulator it will crash as the Simulator does not support camera functionality. So to test it you must run it on a physical iOS device e.g. iPhone or iPad.