Di compiler is not working on my machine

[cmuench]

Got this exception

PHP Fatal error:  Cannot redeclare class Magento\Core\Controller\Varien\Action\Context in /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/app/code/Magento/Core/Controller/Varien/Action/Context.php on line 28
PHP Stack trace:
PHP   1. {main}() /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/dev/tools/Magento/Tools/Di/compiler.php:0
PHP   2. Magento\Tools\Di\Compiler\Directory->compile() /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/dev/tools/Magento/Tools/Di/compiler.php:117
PHP   3. Magento\Code\Reader\ClassReader->getConstructor() /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/dev/tools/Magento/Tools/Di/Compiler/Directory.php:94
PHP   4. ReflectionParameter->getClass() /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/lib/Magento/Code/Reader/ClassReader.php:47
PHP   5. Magento\Autoload\IncludePath::load() /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/lib/Magento/Code/Reader/ClassReader.php:0
PHP   6. include() /home/cmuench/Workspaces/PHP/playground/magento-ce-2.0.0.0/lib/Magento/Autoload/IncludePath.php:90

System: Ubuntu 13.04

PHP 5.4.9-4ubuntu2.3 (cli) (built: Sep 4 2013 19:32:25)
Copyright (c) 1997-2012 The PHP Group
Zend Engine v2.4.0, Copyright (c) 1998-2012 Zend Technologies
with Zend OPcache v7.0.1, Copyright (c) 1999-2013, by Zend Technologies
with Xdebug v2.2.3, Copyright (c) 2002-2013, by Derick Rethans

[davidalger]

I've seen that issue once, refreshed the page and it then loaded just fine. I think I had two web requests running when I got it on one of the two though…

[verklov]

@cmuench , sorry for the delay with the response. Are you still experiencing this issue? If yes, does it reproduce all the time or only from time to time?

[verklov]

@cmuench, the team reviewed your issue recently and could not reproduce it on the most fresh code that we have. We are closing this issue. If you still experience it, please leave a comment or open a new issue.