Chapter 7 UI Fragments and the Fragment Manager
Select the app module on the left and the Dependencies tab in the app module. The dependencies for
the app module are listed here (Figure 7.9).
Figure 7.9 App dependencies
(You may have additional dependencies specified. If you do, do not remove them.)
You should see the AppCompat dependency listed. If you do not, add it with the + button and choose
Library dependency. Choose the appcompat-v7 library from the list and click OK (Figure 7.10).
Figure 7.10 A collection of dependencies