https://coder.tw/en/tags/laravel/Recent content in Laravel on Lin's BlogHugoen-USMon, 12 Dec 2016 04:57:46 +0000https://coder.tw/en/posts/laravel-artisan-migrate-table-already-exisis-or-foreign-key-error/Mon, 12 Dec 2016 04:57:46 +0000https://coder.tw/en/posts/laravel-artisan-migrate-table-already-exisis-or-foreign-key-error/<p>While deploying a project I had developed half a year earlier with Laravel 5.2, I ran into quite a few problems. One of them: after running php artisan migrate, I got a &ldquo;Table Already Exists&rdquo; error. But I had never created that table before. Digging deeper, I found that the table did exist, but there was no record for it in the project_migrations table. So I deleted the table manually and ran php artisan migrate once more. Sure enough, this time the real error message appeared: &ldquo;General error: 1005 Can&rsquo;t create table &lsquo;dbname.#sql-fbc1_15e6&rsquo; (errno: 121) (SQL: alter table <code>karl_project</code> add constraint <code>project_user_id_foreign</code> foreign key (<code>user_id</code>) references <code>karl_user</code> (<code>id</code>))&rdquo;</p>