Cannot build and run in Android Studio

When I load the project in my current Android Studio, I cannot run build and run the project.

The project is not built yet, and when I select from the menu: Build → Rebuild Project, I get an error message popup in the lower right corner with this message:

Unable to find Gradle tasks to build: [:briar:briar-api, :briar:bramble-java, :briar, :briar:bramble-core, :...]. Build mode: REBUILD. Tests: None.