Undefined variable: _SESSION [CORE/src/Network/Session.php CakePHP 3.0 -


i using cakephp 3.0, , uploaded server, working fine in local somehow after uploading server shows error

notice (8): undefined variable: _session [core/src/network/session.php, line 438]

if have idea please me. still trying solve it.
have tried put session_start(); in appcontroller , many other places goes blank.

i have found issue, when uploading files servers automatically appending white blank lines @ end of appcontroller , controller files.

so when removed blank lines files working fine again

    //to detect file have issue or space or header start //file location : vendor/cakephp/cakephp/src/network/session.php      public function write($name, $value = null)             {                 if (empty($name)) {                     return;                 }                  if (!$this->started()) {                     $this->start();                 }                  $write = $name;                 if (!is_array($name)) {                     $write = [$name => $value];                 }                  //remove comment bottom line , run code                  //show exact file have remove blank space                 //session_start();                 $data = $_session ?: [];                 foreach ($write $key => $val) {                     $data = hash::insert($data, $key, $val);                 }                  $this->_overwrite($_session, $data);             }

small issue took long time detect it,hope all.


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