I am attempting to use the Google Credentials API to store credentials for my app. I have downloaded and installed both sample apps from here (https://github.com/googlesamples/android-credentials) as well as tried the code in my own app. When attempting to save any credentials I get the following error - Status{statusCode=No eligible accounts can be found, resolution=null}.
I am testing on a Nexus 5x with a single Gmail account configured.
Any help would be greatly appreciated.