why do I get “Invalid appsecret_proof provided in the API argument”

Question

Since the latest change on Facebook, regarding the appsecret_proof: https://developers.facebook.com/docs/reference/api/securing-graph-api/, we are still unable to download p

Answer 1

This is error is because of in correct token. It may be because you are using different account for configuring web app and mobile app for Facebook configuration. Both accounts should be same.

The app ID must be the same for your mobile app and your web app.