當php artisan migrate發生以下錯誤時
Syntax error or access violation: 1071 Specified key was too long; max key length is 767 bytes

新增defaultStringLength至app/Providers/AppServiceProvider.php內

如下：

use Illuminate\Support\Facades\Schema;

public function boot()
{
    Schema::defaultStringLength(191);
}

刪除所有table後重新執行 php artisan migrate