From my Google Play console I linked a project. Then I created a service account. Still, when refreshing the console, it still says \"There are no service accounts associate
You much enable "Google Play Android Developer API" (one of Google Api & services) for your application via a credential! Google supplies many API for developers can call them from their app. A credential same as a permit (3 types of credentials : API key (such as youtube), OAuth, Service Account) If you never enable one API, it never shown on API Access page!