installed deployer

[RuntimeException]                                                                                                                                     
                                                                                                                                                         
    [RuntimeException]                                                                                                                                   
    An error occurred when executing the "'cache:clear --no-warmup'" command.                                                                            
                                                                                                                                                         
  Exception trace:                                                                                                                                       
   () at /var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/vendor/sensio/distribution-bundle/Sensio/Bundle/DistributionBundle/Composer/Script  
  Handler.php:407                                                                                                                                        
   Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::executeCommand() at /var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/vendor/sens  
  io/distribution-bundle/Sensio/Bundle/DistributionBundle/Composer/ScriptHandler.php:115                                                                 
   Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer  
  .phar/src/Composer/EventDispatcher/EventDispatcher.php:206                                                                                             
   Composer\EventDispatcher\EventDispatcher->executeEventPhpScript() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.pha  
  r/src/Composer/EventDispatcher/EventDispatcher.php:174                                                                                                 
   Composer\EventDispatcher\EventDispatcher->doDispatch() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/src/Compo  
  ser/EventDispatcher/EventDispatcher.php:120                                                                                                            
   Composer\EventDispatcher\EventDispatcher->dispatchCommandEvent() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar  
  /src/Composer/Installer.php:333                                                                                                                        
   Composer\Installer->run() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/src/Composer/Command/InstallCommand.ph  
  p:125                                                                                                                                                  
   Composer\Command\InstallCommand->execute() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/vendor/symfony/consol  
  e/Symfony/Component/Console/Command/Command.php:252                                                                                                    
   Symfony\Component\Console\Command\Command->run() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/vendor/symfony/  
  console/Symfony/Component/Console/Application.php:874                                                                                                  
   Symfony\Component\Console\Application->doRunCommand() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/vendor/sym  
  fony/console/Symfony/Component/Console/Application.php:195                                                                                             
   Symfony\Component\Console\Application->doRun() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/src/Composer/Cons  
  ole/Application.php:146                                                                                                                                
   Composer\Console\Application->doRun() at phar:///var/www/mychristmas.hackathon.pp.ua/releases/2014122067523/composer.phar/vendor/symfony/console/Sym  
  fony/Component/Console/Application.php:126