Class Demo\Helloworld\Controller\Post\index\Interceptor does not exist

Question

I am trying to get data from a database table, my code of Index.php

<?php
namespace Demo\Helloworld\Controller\Post;
class Index extends \Magento\Framework\App\Action\Action
{
 protected $_postFactory;
 public function __construct(
 \Magento\Framework\App\Action\Context $context,
 \Magento\Framework\View\Result\PageFactory $pageFactory,
 \Pixelpro\Helloworld\Model\PostFactory $postFactory
 )
 {
 $this->_pageFactory = $pageFactory;
 $this->_postFactory = $postFactory;
 return parent::__construct($context);
 }
 public function execute()
 {
 
 $post = $this->_postFactory->create();
 $collection = $post->getCollection();
 foreach($collection as $item){
 echo "<pre>";
 print_r($item->getData());
 echo "</pre>";
 }
 
 
 }
}

I tried to run these commands but the error still appears

php bin/magento setup:upgrade
php bin/magento setup:static-content:deploy -f
php bin/magento cache:flush

the error :

1 exception(s): Exception #0 (ReflectionException): Class Demo\Helloworld\Controller\Post\index\Interceptor does not exist Exception #0 (ReflectionException): Class Demo\Helloworld\Controller\Post\index\Interceptor does not exist#1 Magento\Framework\Code\Reader\ClassReader->getConstructor() called at [vendor/magento/framework/ObjectManager/Definition/Runtime.php:54]

• Carlo Ricci: Try running php bin/magento setup:di:compile if you are not in developper mode. Also make sure that your class path reflect your folder path. Your file should be located there : app/code/Demo/Helloworld/Controller/Post/Index.php. your file name should also be Index.php and not index.php
• MMM: I renamed it to Index.php instead of index.php but the error still available, and I am on the developer mode.

Answer 1

just remove generated folder and hit below cmd. make sure your controller name is correct Index.php.

rm -rf generated/* var/*;
php bin/magento cache:flush
php bin/magento setup:upgrade
php bin/magento setup:di:compile

• MMM: I executed these commands but the error still available, and the last command I got this : Deprecated Functionality: Array and string offset access syntax with curly braces is deprecated in /home/626252.cloudwaysapps.com/cgxbwegvut/public_ht ml/app/code/Magefan/Blog/Model/Import/Wordpress.php on line 125