I have an Android app using Facebook to login.
The app is already public:
When trying to login via Facebook, I get this exception:
com.facebook.FacebookAuthorizationException: App Not Setup: This app is still in development mode, and you don't have access to it. Switch to a registered test user or ask an app admin for permissions.
Since the test users are able to login perfectly fine, I'm assuming that my code if fine.
STEP 1:
In Settings - > Basic -> Contact Email .(Give your/any email)
STEP 2:
Make sure you have a valid Privacy Policy available.
STEP 3: in 'App Review' Tab : change
Do you want to make this app and all its live features available to the general public? to 'Yes'.
If the app status says that the App is public, yet you see the error with the SDK login, create a new app and start over.
This is a bug on facebook's end.
I also encountered this issue because I used wrong app id and app secret. Please use valid app id and app secret.
Go to your App Dashboard. Click on App Review (Left side menu) and make your app public? Click "Yes". That's it.
Excelent aportation. This me Help Very much
STEP 1:
In Settings - > Basic -> Contact Email .(Give your/any email)
STEP 2: in 'Status and Review' Tab : change
Do you want to make this app and all its live features available to the general public? to 'Yes'.
Unlike Google, Facebook api needs a valid ssl certificate. So if your website isn't https then according to facebook you are still in development mode. Here is the link to their docs https://developers.facebook.com/docs/apps/security
For development purposes you can use the roles option (can be found on the leftside menu). In here you can enroll your self as a developer or tester to use all the live features.
Once you are done with the development you will have to get an ssl certificate. You can also use a free service like https://letsencrypt.org to get a valid certificate, facebook requires your certificate to be sha256WithRSAEncryption, i personally haven't used letsencrypt with facebook yet but they are one of their sponsors to i guess it should meet their criteria of a decent certificate.
来源：https://stackoverflow.com/questions/29817602/facebook-app-is-public-but-gives-error-app-not-setup-when-logging-in