Please add a secrets.xml-File under app/src/main/res/values with the following content
<?xml version="1.0" encoding="utf-8"?>
<resources>
<string name="google_maps_api_key">place_your_google_maps_api_key</string>
</resources>
To use the fake_keystore please create a keystore.properties-File in the root-folder with the following content:
keyAlias=MyAndroidKeystore
keyPassword=MyAndroidKeystore
storeFile=your/path/to/the/fake_keystore.jks
storePassword=fake_keystore