cache_dir must be a directory

[barbazul]

On a fresh magento2 installation I got the following exception on my first page hit

cache_dir must be a directory

#0 /var/www/magento2/lib/Zend/Cache/Backend/File.php(154): Zend_Cache::throwException('cache_dir must ...')
#1 /var/www/magento2/lib/Zend/Cache/Backend/File.php(121): Zend_Cache_Backend_File->setCacheDir('/var/www/magent...')
#2 /var/www/magento2/lib/Zend/Cache.php(153): Zend_Cache_Backend_File->__construct(Array)
#3 /var/www/magento2/lib/Zend/Cache.php(94): Zend_Cache::_makeBackend('File', Array, true, true)
#4 /var/www/magento2/app/code/core/Mage/Core/Model/Cache.php(143): Zend_Cache::factory('Varien_Cache_Co...', 'File', Array, Array, true, true, true)
#5 /var/www/magento2/lib/Magento/Di/Zend.php(257): Mage_Core_Model_Cache->__construct(Array)
#6 /var/www/magento2/lib/Magento/Di/Zend.php(156): Magento_Di_Zend->createInstanceViaConstructor('Mage_Core_Model...', Array, NULL)
#7 /var/www/magento2/lib/Magento/ObjectManager/Zend.php(81): Magento_Di_Zend->newInstance('Mage_Core_Model...', Array, false)
#8 /var/www/magento2/app/Mage.php(488): Magento_ObjectManager_Zend->create('Mage_Core_Model...', Array, false)
#9 /var/www/magento2/app/code/core/Mage/Core/Model/App.php(429): Mage::getModel('Mage_Core_Model...', Array)
#10 /var/www/magento2/app/code/core/Mage/Core/Model/App.php(312): Mage_Core_Model_App->_initCache(Array)
#11 /var/www/magento2/app/code/core/Mage/Core/Model/App.php(357): Mage_Core_Model_App->baseInit(Array)
#12 /var/www/magento2/app/Mage.php(739): Mage_Core_Model_App->run(Array)
#13 /var/www/magento2/index.php(39): Mage::run('', 'store')
#14 {main}

I haven't looked into the reason yet.

I'm running LinuxMint 14 (Cinnamon) with PHP 5.4

[sshymko]

@barbazul Magento 2 is not fully compatible with PHP 5.4 yet.

[barbazul]

I am aware of that.
I was just trying a fresh installation just to check what changes were needed to make it run under PHP 5.4 and this was the firs issue I found.

[barbazul]

Turns out this was a permission issue.

/var did not have the right permissions.

Previous versions of magento would let you know about this during installation but in this case I never got to the installation because of this error.

After changing the permissions in /var I got to a blank page with the message:

To proceed with installation, ensure that the path '/var/www/magento2/pub/media/theme' is writable.

I guess a similiar message should have been shown during the first run. Am I right?

[magento-team]

Hello. I have filed a bug report on that. Thanks