laravel 外鍵約束失敗

Question

1.現有從表score外鍵player_id與主表playerinfo主鍵id相關聯。
2.向從表格新增資料時，出現:
Integrity constraint violation: 1452 Cannot add or update a child row: a foreign key constraint fails (racesys.score, CONSTRAINT score_player_id_foreign FOREIGN KEY (player_id) REFERENCES playerinfo (id)) (SQL: insert into score (id, player_id, node, childnode, time) values (041be572-2ed5-3e01- ac2c-43bab35117e9, 00ec1635-0fd5-3481-a3d4-0afa4e8f66ea, 1, 1, 2007-05-23 14:38:26))"

3.
playerinfo主鍵id屬性

]

score外鍵player_id屬性

#問題：是什麼原因出現的外鍵約束失敗？如何解決？

Answer 1

在新增從表是外鍵在主表主鍵要有資料。