To upload files, use the user_access_token generated by the Graph API exploration tool. To upload videos, use the page_id and page_access_token obtained by calling the {userId}/accounts interface. Error response：{ "error": { "message": "(#100) Using file handle created for another user", "type": "OAuthException", "code": 100, "fbtrace_id": "AB67fENZ3q3wgfBxcp0Iz_0" } }