laravel-artisan

Since increments() creates an unsigned integer column, you need to define the foreign key column as unsigned integer too. Default migrations in Laravel 6+ use bigIncrements(), so you need to use unsignedBigInteger() method: $table->unsignedBigInteger(‘order_id’); https://laravel.com/docs/6.x/migrations#foreign-key-constraints For default migrations in older versions of Laravel use unsignedInteger() method: $table->unsignedInteger(‘order_id’); Or: $table->integer(‘order_id’)->unsigned(); https://laravel.com/docs/5.5/migrations#foreign-key-constraints