To build the example app, you will need to create a local.properties file at the root of the project with the following properties:
debugGoogleServices- The Firebase config JSON for a Firebase project to host the realtime database.releaseGoogleServices- Same as above, but for the release build configuration. You can use the same value if you do not have two separate Firebase projects.debugMixpanelToken- A Mixpanel API token for logging analytics events.releaseMixpanelToken- Same as above, but for the release build configuration.
debugGoogleServices={"project_info":{"project_number":"123"...
releaseGoogleServices={"project_info":{"project_number":"456"...
debugMixpanelToken=123abc
releaseMixpanelToken=456xyz