After upgrade Laravel 5.3 to Laravel 5.4
Show me this error
FatalErrorException in Manager.php line 138:
Call to undefined method Illuminate\Session\Store::set()
All calls to the ->set() method should be changed to ->put(). Typically, Laravel applications would never call the set method since it has never been documented within the Laravel documentation. However, it is included here out of caution.
Topic in documentation
Sessions
Symfony Compatibility
for more information to read laravel 5.4 documentation Documentation