You can access the resources created for exercises in Do-It-Yourself Geo Apps from your own ArcGIS Online account via the following URLs. You're also welcome to download the exercise PDFs from Udemy. You may reuse these resources for any non-commercial educational purpose, provided that you acknowledge Esri's authorship.
Please note that you need be a named user ArcGIS Online subscription account to complete the exercises.
Exercise5PalmSprings.zip - Contains the assets needed for AppStudio for ArcGIS mobile app in Section 5 Exercise 1.
Exercise5BikeParking.zip - Contains the assets needed for AppStudio for ArcGIS mobile app in Section 5 Exercise 1.