Invalid database secret

I am attempting to use the Guestbook example, after entering the admin key that I generated from the dashboard, during the setup process I receive
Error: Invalid database secret.: {“response”:{“errors”:[{“message”:“Invalid database secret.”}],
I ran the setup script multiple times, I followed all steps exactly,

Have you ensured that the secret does not contain any unicode or newlines in it? Sometimes when copying from the dashboard I’ve noticed it includes a \n at the end.