I did create the developer account and got my App ID and the App Secret. I have followed all instructions but when I submit a test post to FaceBook, I get this error message: ERROR:(#200) This API call requires a valid app_id. [Error] => No Auth Token Found/Not configured
SNAP is setup correctly and it makes posts to my Facebook, but those posts are not showing up in the newsfeed. Only I can see the posts, none of my friends do.
The reason for “An unknown error has occurred” error is broken/corrupted image. Please check that your image is ok, has absolute path, and please make sure that your server doesn’t have some king of protection against direct downloads of your images (hotlinking...
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