For 5.4
Homestead
Win 10

1、Storage:link => symlink(): Protocol error
solution：
Run cmd as Super Admin.
php artisan storage:link
Dene.

http://stackoverflow.com/questions/39496598/laravel-5-3-storagelink-symlink-protocol-error

2、use Mail Queue , can’t load env or load old env config
solution：
be Reset Queue , Done.