Yii2 - The directory is not writable by the Web process | frontend/web/assets
Try with following commands:
This will give you the name of apache user.
ps -ef | grep apache | grep -v grep
In most of the cases the user will be www-data.Run these command after going into the /frontend/web folder:
sudo chgrp www-data ./assets
and
sudo chmod g+w ./assets/
Your problem will be solved.