Message: call_user_func_array() expects parameter 1 to be a valid callback

Question

A PHP Error was encountered Severity: Warning

Message: call_user_func_array() expects parameter 1 to be a valid callback, class 'Error' does not have a method 'index'

Filename: core/CodeIgniter.php

Line Number: 532

Backtrace:

File: /var/www/monitors/index.php Line: 315 Function: require_once

In my local system working fine but i move to the server i got this error

Answer 1

I got a similar error that I solved by renaming the Error class to Errors in application/controllers/Errors.php. In config/routes.php I changed the class name accordingly:

$route['404_override'] = "errors/page_missing";