Error Install Rights (CWebApplication.db" is read only)

Para master, saya mau install rights tapi muncul error di webnya seperti ini:

Property "CWebApplication.db" is read only

Cose di main.php sbb:

  ...


    'import'=>array(


	'application.models.*',


	'application.components.*',


	'application.modules.rights.*',


	'application.modules.rights.components.*',


),





'modules'=>array(


	'rights'=>array(


		//'superuserName'=>'Admin',


		//'userIdColumn'=>'id',    // mengeset nama colom yang menjadi id user


		//'userNameColumn'=>'username',  mengeset nama colom yang menjadi username user


		'install'=>true, // jika anda ingin menginstall, jika sudah terinstal dihilangkan saja baris ini


	),


),





'modules'=>array(


	// uncomment the following to enable the Gii tool


	///*


	'gii'=>array(


		'class'=>'system.gii.GiiModule',


		'password'=>'admin',


		// If removed, Gii defaults to localhost only. Edit carefully to taste.


		'ipFilters'=>array('127.0.0.1','::1'),


	),


	//*/


),





// application components


'components'=>array(





	'user'=>array(


		'class'=>'RWebUser',


		// enable cookie-based authentication


		'allowAutoLogin'=>true,


		


	),


	'authManager'=>array(


		'class'=>'RDbAuthManager',


		'connectionID'=>'db',


		'defaultRoles'=>array('Authenticated','Guest'),


	),


),

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