Estoy recibiendo este extraño error con Symfony2. En localhost, todo funciona bien, pero cuando lo intento en mi servidor me sale este error de PHP:

[06-Mar-2013 22:04:50 UTC] PHP Fatal error:  Uncaught exception 'Symfony\Component\DependencyInjection\Exception\InvalidArgumentException' with message  '[ERROR 3070] complex type 'service': The content model is not determinist. (in file:////home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd - line 75, column 0)
[ERROR 3070] complex type 'argument': The content model is not determinist. (in file:////home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd - line 131, column 0)
[ERROR 3070] complex type 'call': The content model is not determinist. (in file:////home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd - line 144, column 0)' in /home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php:370
Stack trace:
#0 in /home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php on line 370
[06-Mar-2013 22:13:36 UTC] PHP Fatal error:  Uncaught exception 'Symfony\Component\DependencyInjection\Exception\InvalidArgumentException' with message '[ERROR 3070] complex type 'service': The content model is not determinist. (in file:////home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd - line 75, column 0)
[ERROR 3070] complex type 'argument': The content model is not determinist. (in file:////home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd - line 131, column 0)
[ERROR 3070] complex type 'call': The content model is not determinist. (in file:////home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/schema/dic/services/services-1.0.xsd - line 144, column 0)' in /home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php:370
Stack trace:
#0 in /home/neuronas/public_html/miramos.tv/vendor/symfony/symfony/src/Symfony/Component/DependencyInjection/Loader/XmlFileLoader.php on line 370

Parece ser algo sobre XMLFile Loader, pero no hice cambios en su archivo