laravel.log" could not be opened in append mode: failed to open stream: Permission denied 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: could not be opened in append mode: failed to open stream: Permission denied

sudo chown -R $USER:www-data storage
sudo chown -R $USER:www-data bootstrap/cache

Example 3: UnexpectedValueException The stream or file "/var/www/html/storage/logs/laravel.log" could not be opened in append mode: failed to open stream: Permission denied

# setenforce 0

Example 4: could not be opened in append mode failed to open stream permission denied

Reference link if giving a permission doesn't solved your issue
https://www.digitalocean.com/community/questions/the-stream-or-file-var-www-html-myscipt-storage-logs-laravel-log-could-not-be-opened-failed-to-open-stream-permission-denied

Example 5: could not be opened in append mode

chmod -R 777 storage

Example 6: laravel.log" could not be opened in append mode

config.vm.synced_folder "./app","/var/www/", create:true,
:owner => "vagrant",
:group => "www-data",
:mount_options => ["dmode=775","fmode=664"]