php - Facebook API V4 (#100) The parameter input_token is required -


i using facebook api v4. doing is, posting text/link facebook page. generated long lived access token. using below code:

<?php require 'vendor/autoload.php';  use facebook\facebooksession; use facebook\facebookredirectloginhelper; use facebook\facebookrequest; use facebook\facebookresponse; use facebook\facebooksdkexception; use facebook\facebookrequestexception; use facebook\facebookauthorizationexception; use facebook\graphobject; use facebook\entities\accesstoken; use facebook\httpclients\facebookcurlhttpclient; use facebook\httpclients\facebookhttpable;  facebooksession::setdefaultapplication('*****', '*****');  $session = new facebooksession('*****');  // validate session: try {         $session->validate();       $request = new facebookrequest(       $session,       'post',       '/183457781707540/feed',       array (         'message' => 'this test message',         'link' =>  'http://images.speakingtree.iimg.in/files/04-2015/180363/c20ad4d76fe97759aa27a0c99bff6710_1429705305.jpg'       )     );     $response = $request->execute();     $graphobject = $response->getgraphobject(); } catch (facebookrequestexception $ex) {   // session not valid, graph api returned exception reason.   echo $ex->getmessage(); } catch (\exception $ex) {   // graph api returned info, may mismatch current app or have expired.   echo $ex->getmessage(); }

my main problem code works on local pc. when upload file server then

$session->validate();

give me error called: (#100) parameter input_token required

i don't know missing.

help appreciated.

thanks.


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