How to done routing in code igniter?

Question

First time i am working on CI project. I am having one linking issue.

header.php : (views)

<li class="">
      <a title="" href="<?php echo site_url('index.php/welcome/index')?>">
         <i class="icon icon-share-alt"></i> 
         <span class="text">Logout</span>
     </a>
</li>

In Welcome.php : (controller)

public function index(){
    $this->load->view('layouts/login');
}

From this i am getting this error:

( ! ) Warning: include(F:\xampp\htdocs\payroll_crm\application\views\errors\html\error_php.php): failed to open stream: No such file or directory in F:\xampp\htdocs\payroll_crm\system\core\Exceptions.php on line 268

please help me with the same.I did not work on routing. is there need of routing?

Answer 1

Have you: Register/defined your route in application/config/routes.php in $route array?

You might wanna look: https://www.codeigniter.com/userguide3/general/routing.html