Facebook feed from temp directory

local attachment = {
                name = "Yeeha, Your image is now on your Facebook page!",
                link = "https://www.facebook.com/pages/3Claws-Games/419060951520798",
                caption = "Visit 3Claws on Facebook",
                description = "My scary Image on FearCam.",
                source = { baseDir, filename="imageForFb.jpg", type="photo" },
                source = { system.TemporaryDirectory, filename="imageForFb.jpg", type="image" },
                --picture = "http://www.coronalabs.com/links/demo/Corona90x90.png",
--IT WORKS IF I COMMENT OUT THE source VARIABLE AND USE picture VARIABLE INSTEAD
--BUT I HAVE TO PICK FROM THE TemporaryDirectory FOLDER
                actions = json.encode( { { name = "My Image", link = "http://3claws.org" } } )
            }

            facebook.request( "me/feed", "POST", attachment )       -- posting the photo