Laravel 4：从本地服务器复制到实时服务器

I am trying to copy a project from localhost to live server done in Laravel 4 framework. On the local machine it is working, but I have this error in live server:

Warning: Unexpected character in input: '\' (ASCII=92) state=1 in
/**********/laravel/bootstrap/autoload.php on line 46

Parse error: syntax error, unexpected T_STRING in 
/**********/laravel/bootstrap/autoload.php on line 46

I didn't modify those files.

Thanks

At line 46 there is

Patchwork\Utf8\Bootup::initAll();

and php complaining for \ which means it doesn't supprt namespace, you have to upgrade to PHP 5 >= 5.3.0 because right now it's (on your live server) prior to PHP 5.3.0 and remember that laravel requires PHP >= 5.3.7 so upgrade your php version.