Jira issue originally created by user dynom:
I think it's fairly self explanatory, didn't supply a patch since I had no idea what text you wanted there :-)
PHP Fatal error: Call to undefined method Doctrine\ORM\Proxy\ProxyException::proxyDirectoryNotWritable() in .../orm/lib/Doctrine/ORM/Proxy/ProxyFactory.php on line 193
Comment created by @guilhermeblanco:
This issue is already fixed in master
Issue was closed with resolution "Fixed"