Cakephp кеш не записывается сообщение об ошибке

я имею Fedora18 и пытался установить cakephp , Но это показывает

Warning: _cake_core_ cache was unable to write 'cake_dev_en-us' to File cache in /var/www/html/cakem2/lib/Cake/Cache/Cache.php on line 323

Warning: /var/www/html/cakem2/app/tmp/cache/persistent/ is not writable in /var/www/html/cakem2/lib/Cake/Cache/Engine/FileEngine.php on line 385

Fatal error: Uncaught exception 'CacheException' with message 'Cache engine _cake_core_ is not properly configured.' in /var/www/html/cakem2/lib/Cake/Cache/Cache.php:181 Stack trace: #0 /var/www/html/cakem2/lib/Cake/Cache/Cache.php(151): Cache::_buildEngine('_cake_core_') #1 /var/www/html/cakem2/app/Config/core.php(374): Cache::config('_cake_core_', Array) #2 /var/www/html/cakem2/lib/Cake/Core/Configure.php(72): include('/var/www/html/c...') #3 /var/www/html/cakem2/lib/Cake/bootstrap.php(175): Configure::bootstrap(true) #4 /var/www/html/cakem2/app/webroot/index.php(94): include('/var/www/html/c...') #5 /var/www/html/cakem2/index.php(41): require('/var/www/html/c...') #6 {main} thrown in /var/www/html/cakem2/lib/Cake/Cache/Cache.php on line 181

После ответов Подобный вопрос, Я сделал все каталоги и подкаталоги для записи, как показано в . Но я все еще получаю ошибку! В чем дело ?