请教出现以下画面是什么问题？ [ 未指定版本 ]

CException

Property "CWebApplication.errorHandler" is read only.

E:\APMServ\www\htdocs\yii\framework\base\CModule.php(513)

501 $this->setComponent($id,$component,$merge);
502 }
503
504 /*
505 Configures the module with the specified configuration.
506 @param array $config the configuration array
507 /
508 public function configure($config)
509 {
510 if(is_array($config))
511 {
512 foreach($config as $key=>$value)
513 $this->$key=$value;
514 }
515 }
516
517 /
518 Loads static application components.
519 /
520 protected function preloadComponents()
521 {
522 foreach($this->preload as $id)
523 $this->getComponent($id);
524 }
525
Stack Trace
#0
– E:\APMServ\www\htdocs\yii\framework\base\CModule.php(513): CComponent->__set("errorHandler", array("errorAction" => "site/error"))
508 public function configure($config)
509 {
510 if(is_array($config))
511 {
512 foreach($config as $key=>$value)
513 $this->$key=$value;
514 }
515 }
516
517 /
518 Loads static application components.
#1
– E:\APMServ\www\htdocs\yii\framework\base\CApplication.php(161): CModule->configure(array("name" => "My Web Application", "preload" => array("log"), "import" => array("application.models.", "application.components."), "modules" => array(), ...))
156 $this->preinit();
157
158 $this->initSystemHandlers();
159 $this->registerCoreComponents();
160
161 $this->configure($config);
162 $this->attachBehaviors($this->behaviors);
163 $this->preloadComponents();
164
165 $this->init();
166 }
#2
– E:\APMServ\www\htdocs\yii\framework\YiiBase.php(125): CApplication->__construct("E:\APMServ\www\htdocs\120/protected/config/main.php")
120 to the constructor of the application class.
121 @return mixed the application instance
122 /
123 public static function createApplication($class,$config=null)
124 {
125 return new $class($config);
126 }
127
128 /**
129 Returns the application singleton or null if the singleton has not been created yet.
130 @return CApplication the application singleton, null if the singleton has not been created yet.
#3

• E:\APMServ\www\htdocs\yii\framework\YiiBase.php(98): YiiBase::createApplication("CWebApplication", "E:\APMServ\www\htdocs\120/protected/config/main.php")
  #4
• E:\APMServ\www\htdocs\120\index.php(13): YiiBase::createWebApplication("E:\APMServ\www\htdocs\120/protected/config/main.php")
  2014-01-22 15:53:46 Apache/2.2.9 (APMServ) mod_ssl/2.2.9 OpenSSL/0.9.8h PHP/5.2.6 Yii Framework/1.1.14