尝试在Symfony 2中生成捆绑包时，终端中出现错误消息

我刚开始学习Symfony 2，公平地说，这个问题可能看起来很基本。我刚开始时遇到了麻烦——我怀疑我的Symfony项目或PHP中的配置存在配置问题。当我输入php-app/console时，这就是我得到的错误。我似乎什么都做不了，比如生成捆绑包。如果有人至少能给我一些指导，让我从这个错误开始，我将不胜感激。我是个新手。

    unknown-ec:35:86:4d:41:5e:symfonyTest simonalice$ php app/console
    PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-     non-zts-20090626/php_mysql.dll' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-  20090626/php_mysql.dll, 9): image not found in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug- non-zts-20090626/php_mysqli.dll' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-20090626/php_mysqli.dll, 9): image not found in Unknown on line 0
    PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pdo_mysql.dll' - dlopen(/usr/lib/php/extensions/no-debug-non-zts-20090626/php_pdo_mysql.dll, 9): image not found in Unknown on line 0

    [Symfony'Component'Debug'Exception'ContextErrorException]                    
    Warning: date_default_timezone_get(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or  
   the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected 'Europe/London' for 'BST/1.0/DST' instead in /Applications/MAMP/htdocs/symfonyTest/vendor/monolog/monolog/src/Monolog/Logger.php line 233    

正在查看我的phpini（）文件。。。。

;;;;;;;;;;;;;;;;;;;;;;
; Dynamic Extensions ;
;;;;;;;;;;;;;;;;;;;;;;
;
; If you wish to have an extension loaded automatically, use the following
; syntax:
;
;   extension=modulename.extension
;
; For example, on Windows:
;
;   extension=msql.dll
;
; ... or under UNIX:
;
;   extension=msql.so
;
; Note that it should be the name of the module only; no directory information 
; needs to go here.  Specify the location of the extension with the
; extension_dir directive above.

; Extensions
extension=apcu.so
extension=imap.so
extension=gettext.so
extension=mcrypt.so
extension=yaz.so
extension=pgsql.so
extension=pdo_pgsql.so
extension=pdo_mysql.so
;extension=imagick.so
;extension=tidy.so

然而，有了这个设置，当我输入php应用程序/控制台时，我仍然会收到错误消息

在这一点上把我逼疯了。。。。。