When I ran "php artisan db:seed", It showed

[timloo0710]

[Illuminate\Database\QueryException]
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update
a child row: a foreign key constraint fails (leantony.reviews, CONSTRAI
NT user_can_make_many_reviews FOREIGN KEY (user_id) REFERENCES users
(id) ON DELETE CASCADE ON UPDATE CASCADE) (SQL: insert into reviews (p roduct_id, user_id, comment, stars, updated_at, created_at) valu
es (92, 172, Accusamus earum facere ratione odit qui laudantium. Nisi aut q
uod quo. Et culpa quaerat aut et optio nemo. Doloremque sunt cum animi nisi
voluptatem. Excepturi sit odit ut temporibus iste qui., 5, 2017-06-11 03:4
9:04, 2017-06-11 03:49:04))

[PDOException]
SQLSTATE[23000]: Integrity constraint violation: 1452 Cannot add or update
a child row: a foreign key constraint fails (leantony.reviews, CONSTRAI
NT user_can_make_many_reviews FOREIGN KEY (user_id) REFERENCES users
(id) ON DELETE CASCADE ON UPDATE CASCADE)

[ZaheerAbbasAghani]

same here