[Resolvido] Problema com Zend_Session_Exception

Estou tentando arrumar um problema com o ZEND_ACL ainda... então tentei montar uma "whitelist" onde deixo os controladores que eu não quero bloquear de fora... mas recebo este erro:

Warning: in_array() expects parameter 2 to be array, null given in /Users/luizfernandolidio/Sites/Anisteki/library/Aplicacao/Plugin/Auth.php on line 43

Warning: in_array() expects parameter 2 to be array, null given in /Users/luizfernandolidio/Sites/Anisteki/library/Aplicacao/Plugin/Auth.php on line 43

Fatal error: Uncaught exception 'Zend_Session_Exception' with message 'Session must be started before any output has been sent to the browser; output started in /Users/luizfernandolidio/Sites/Anisteki/library/Aplicacao/Plugin/Auth.php/43' in /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Session.php:443 Stack trace: #0 /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Session/Namespace.php(143): Zend_Session::start(true) #1 /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Auth/Storage/Session.php(87): Zend_Session_Namespace->__construct('Zend_Auth') #2 /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Auth.php(91): Zend_Auth_Storage_Session->__construct() #3 /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Auth.php(141): Zend_Auth->getStorage() #4 /Users/luizfernandolidio/Sites/Anisteki/library/Aplicacao/Plugin/Auth.php(46): Zend_Auth->hasIdentity() #5 /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Controller/Plugin/Broker.php(309): Aplicacao_Plugin_Auth->preDispatch(Object(Zend_Controller_Reques in /Users/luizfernandolidio/Sites/Anisteki/library/Zend/Controller/Plugin/Broker.php on line 312

Alguem sabe como resolver?

Meu codigo:

protected $_whiteList = array('index', 'trabalhos', 'contato');

public function preDispatch(Zend_Controller_Request_Abstract $request)
 {
 $controller = "";
 $action = "";
 $module = "";
 //Se o controller estiver na lista que não necessita de login, não

faz nada

 if (in_array($request->getControllerName(), $this->_whitelist))
 return;
 //A partir daqui, todos os controladores necessitam de um usuário

autenticado

 if ( !$this->_auth->hasIdentity() ) {
 $controller = $this->_notLoggedRoute['controller'];
 $action = $this->_notLoggedRoute['action'];
 $module = $this->_notLoggedRoute['module'];
 } else if ( !$this->_isAuthorized($request->getControllerName(),
 $request->getActionName()) ) {
 $controller = $this->_forbiddenRoute['controller'];
 $action = $this->_forbiddenRoute['action'];
 $module = $this->_forbiddenRoute['module'];
 } else {
 $controller = $request->getControllerName();
 $action = $request->getActionName();
 $module = $request->getModuleName();
 }
 $request->setControllerName($controller);
 $request->setActionName($action);
 $request->setModuleName($module);
 }

Linha com erro seria esta:

 if (in_array($request->getControllerName(), $this->_whitelist))
 return;

OBS: Ja tentei startar o ZEND_SESSION no meu bootstrap

protected function _initSessions() { Zend_Session::start(); }

Mas o problema continua...

Alguem tem alguma ideia?