facebook login issue - canOpenURL: failed for URL: “fbauth2:///” - error: “(null)”

Question

When I click on login with Facebook button, it is opening safari browser and getting closed immediately. Noticed error on the console.

App delegate method:

Answer 1

You have an extra "/" in your url "fbauth2:///".

Then you can see "error_message=Invalid+Scope" in the url, you should probably check the permissions of your app: https://developers.facebook.com/docs/facebook-login/permissions/v2.4