has anyone encountered this problem?

Merge CSS is not working at all altough minifying does.

I'm still in Developers mode, but it's also not working in Production mode. I tried:

php bin/magento setup:upgrade
php bin/magento setup:di:compile
php bin/magento setup:static-content:deploy
php bin/magento cache:flush

Any of these helped. I also cleared CSS/JS cache from the backend and cleared var/view_preprocessed manually. I also followed other threads here but no success...

Thank you for help!

  • What error you have ?
    – St3phan
    Jan 17, 2017 at 17:38
  • I actually don't get any.. Nothing happens - css is still unmerged. Only on php bin/magento setup:di:compile I get 4errors like this: errors during compilation: Magetrend\Email\Block\Email\Block\Sales\Info Incorrect dependency in class Magetrend\Email\Block\Email\Block\Sales\Info in /home/8115764962.cloudwaysapps.com/mjkcnnfnmf/public_html/app/code/Magetrend/Email/Block/Email/Block/Sales/Info.php\Magento\Framework\View\LayoutInterface already exists in context object - But this should be related only to module, not css.. Jan 17, 2017 at 17:49
  • What php version you use ?
    – St3phan
    Jan 17, 2017 at 18:12
  • It's PHP7.0, I use Varnish and Redis cache. Jan 17, 2017 at 18:13
  • I checked db -> "dev/css/merge_css_files 1" so it's active in database but no outcome Jan 17, 2017 at 18:21

1 Answer 1


Please check your pub/static folder. Maybe the www-data group doesn't have a write permision to create _cache folder. I've deleted static folder manually in command line. Therefore it can not create _cache folder.

Take a look at var/log/exceptions.log: tail -f var/log/exception.log In my case:

[2020-09-26 12:28:24] main.CRITICAL: Le répertoire "/data/var/www/preprod/www/pub/static/_cache" ne peut être crée Warning!mkdir(): Permission denied {"exception":"[object] (Magento\\Framework\\Exception\\FileSystemException(code: 0): Le répertoire \"/data/var/www/vgc-preprod/www/pub/static/_cache\" ne peut être crée Warning!mkdir(): Permission denied at /data/var/www/preprod/www/vendor/magento/framework/Filesystem/Driver/File.php:227)"}


chmod 777 -r pub/static

Hope it can help.

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.