From what I read, it would be great if you upgraded to the latest version of Android Studio first, remember that these examples are very fresh and therefore the version of the IDE in which they were developed.
Also note that there are three projects in the repository. Their location:
- [root folder] / face / FaceTracker
- [root folder] / face / multi-tracker
- [root folder] / face / photo demo
From there, you can simply import each of them as an existing project.
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