laravel permission denied storage log code example

Example 1: storage/logs/laravel.log" could not be opened: failed to open stream: Permission denied

$ chmod -R 775 storage bootstrap/cache

Example 2: laravel file permission denied

Could be that although you have 755/777 permissions, SELinux is blocking httpd from writing/creating dirs.:
chcon -R -t httpd_sys_content_t /var/www/html
sudo chcon -R -t httpd_sys_rw_content_t /var/www/mrr/public/textpipe
  
sudo chgrp apache -R /var/www/html/files
chmod g+s .