Call to undefined method Mage_Catalog_Model_Product_Type_Simple::getUsedProducts() in app\…\.Configurable\Attribute\Collection.php on line 160

Question

I Try to make a link in my custom module where I can show my all product with some information. But It show a error. There just install magento with sample data. my output

337-Aviator Sunglasses(ace000) 338-Jackie O Round Sunglasses(ace001)

.....

.....

.....

399-Madison 8GB Digital Media Player(hde012)

400-Compact mp3 Player(hde013)

Fatal error: Call to undefined method Mage_Catalog_Model_Product_Type_Simple::getUsedProducts() in \app\code\core\Mage\Catalog\Model\Resource\Product\Type\Configurable\Attribute\Collection.php on line 160

My code

config.xml

<config>
    <modules>
        <Abdus_Allproduct>
            <version>1.0.0</version>
        </Abdus_Allproduct>
    </modules>
    <frontend>
        <routers>
            <allproduct>
                <use>standard</use>
                <args>
                    <module>Abdus_Allproduct</module>
                    <frontName>allproduct</frontName>
                </args>
            </allproduct>
        </routers>
    </frontend>
</config>

IndexController.php

<?php
  class Abdus_Allproduct_IndexController extends Mage_Core_Controller_Front_Action{
      public function indexAction(){
          $collection = Mage::getModel('catalog/product');
            $col=$collection->getCollection()->addAttributeToFilter('visibility',array('in'=>array(2,3,4)));
            foreach($col as $c){
                $collection->load($c->getId());
                echo $collection->getId().'-'.$collection->getName().'('.$collection->getSku().')<br>'; 
            }
      }
  }

Answer 1

Please try bellow code

    $collection = Mage::getModel('catalog/product')->getCollection()
        ->addMinimalPrice()
        ->addFinalPrice()
        ->addTaxPercents()
        ->addAttributeToSelect(Mage::getSingleton('catalog/config')->getProductAttributes())
        ->addUrlRewrite()
        ->addAttributeToFilter('visibility',array('in'=>array(2,3,4)));
    foreach($collection as $product){
        echo $product->getId().'-'.$product->getName().'('.$product->getSku().')<br>'; 
    }