When the user_link permission is requested from Facebook, GraphRequest.newMeRequest() returns a null object
问题 I'm letting Firebase handle login to Facebook in my app, as advised in the Firebase docs: loginButton.setPermissions("email", "public_profile"); When I call GraphRequest.newMeRequest(), I request the user_link permission as follows: Bundle parameters = new Bundle(); // Need special permission from Faceook in order to get this data. Apply after we've settled on a new name for the app. parameters.putString("fields", "id, first_name, last_name, email, gender, birthday, timezone, picture, locale,