PHP Error

Trying to get property of non-object

/home/cesal/public_html/protected/views/individual/proUno.php(5)

01 <div class="nosotros_container quienes">
02     <div class="menuTitle">PROYE</div>
03     <?php echo'<div class="inv'.$number.' invBigBox">';?>
04         <span><?php echo $number+1;?></span>
05         <p class="iTitle"><?php echo $this->project->titulo;?></p>
06         <p class="resumen">
07             <span class="inves">&nbsp;</span>
08             <?php 
09             $int=explode(',',$this->project->integrantes); 
10             if(sizeof($int)>1){
11              ?>
12             <span class="inves"><b>Titular</b></span>
13             <?php
14                 foreach ($int as $i){
15                     echo '<span class="inves">'.$i.'</span>';
16                 }
17             }   

Stack Trace

#4
+
 /home/cesal/public_html/protected/controllers/IndividualController.php(23): CController->render("proUno", array("number" => "7"))
18     public function actionPro($id,$number){
19         $this->title = 'Individuales';
20         $this->selSubMenu = 'proyectos';
21         $this->project=Proyectos::model()->findByPk($id);
22         $this->layout = '/layouts/main2';
23         $this->render('proUno',array('number'=>$number));
24     }
25 }
#14
+
 /home/cesal/public_html/index.php(14): CApplication->run()
09 // specify how many levels of call stack should be shown in each log message
10 defined('YII_TRACE_LEVEL') or define('YII_TRACE_LEVEL',3);
11 
12 header('Content-Type: text/html; charset=utf-8');
13 require_once($yii);
14 Yii::createWebApplication($config)->run();
15 
16 
17 
18 
19 
2002-04-12 21:40:25 Apache/2.4.10 (Debian) Yii Framework/1.1.8