I have recently started getting this error while posting to facebook newsfeed stream of an app user, I do have an offline access permission for the access tokens, and they w
This is undocumented but I just tested it and it works with expired access tokens. Should work on access tokens that have been invalided if you know their user id, and they haven't revoked privileges to your app. First, you can verify that you still have have the permissions you need by calling using this url:
https://graph.facebook.com/userID/permissions?access_token=appID|appSecret
If you still have publish_stream permissions, you can issue a HTTP POST to this url:
https://graph.facebook.com/userID/feed
with post parameters of access_token=appID|appSecret&message=test message