Notice (8): compact() [<a href='http://php.net/function.compact'>function.compact</a>]: Undefined variable: etagMatches [CORE/src/Http/Response.php, line 1866]
Notice (8): compact() [<a href='http://php.net/function.compact'>function.compact</a>]: Undefined variable: timeMatches [CORE/src/Http/Response.php, line 1866]
Warning (512): Unable to emit headers. Headers sent in file=/home/parikishore65/public_html/siiff/vendor/cakephp/cakephp/src/Error/Debugger.php line=822 [CORE/src/Http/ResponseEmitter.php, line 48]
Warning (2): Cannot modify header information - headers already sent by (output started at /home/parikishore65/public_html/siiff/vendor/cakephp/cakephp/src/Error/Debugger.php:822) [CORE/src/Http/ResponseEmitter.php, line 148]
Warning (2): Cannot modify header information - headers already sent by (output started at /home/parikishore65/public_html/siiff/vendor/cakephp/cakephp/src/Error/Debugger.php:822) [CORE/src/Http/ResponseEmitter.php, line 177]
Error: Missing Controller

Missing Controller Cake\Routing\Exception\MissingControllerException

Documentation API

Error: Index.htmlController could not be found.

Error: Create the class Index.htmlController below in file: src/Controller/Index.htmlController.php

<?php
namespace App\Controller;

use 
App\Controller\AppController;

class 
Index.htmlController extends AppController
{

}

If you want to customize this error message, create src/Template/Error/missing_controller.ctp

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