Fatal error: Class 'Helper_Data' not found in app\Mage.php

Fatal error: Class 'Mage_Parcelamento_Helper_Data' not found in

C:\wamp64\www\magento\app\Mage.php on line 547

Error log:

Warning: include(Mage\Parcelamento\Helper\Data.php): failed to open stream: No such file or directory in lib\Varien\Autoload.php on line 94

I did what you said, but it's still with the same error.


1 Answer 1


Your extension is calling helper data from extension Bizcommerce_Parcelamento So you need to integrate this extension too.

If you check this class

class FLB_Cielo_Block_Form_Cc extends Mage_Payment_Block_Form_Cc {

    /** @var Bizcommerce_Parcelamento_Helper_Data */
    private $_parcelamento = null;

    protected function _construct() {
        $this->_parcelamento = Mage::helper('parcelamento');

public function getParcelas() {

        $this->_parcelamento->numparcelas = $maxParcelas;
        $this->_parcelamento->parcelaMinima = $valorMinimo;
        $this->_parcelamento->juros = $taxaJuros;
        $this->_parcelamento->tipoJuros = $tipoJuros;
        $this->_parcelamento->numParcelasSemJuros = $parcelasSemJuros;
        $this->_parcelamento->descontoPrimeiraParcela = $descontoPrimeiraParcela;
        $parcelamento = $this->_parcelamento->getParcelamentosPossiveis($total);


Data are getting called from this helper data which is not found so you are getting the error Mage_Parcelamento_Helper_Data not found.

Hope this helps.

  • I really don't understand, I have to put this code where? In config.xml ? Commented Jun 27, 2017 at 4:50
  • You dont have to put this code. I have shown you this code so you can understand why you were getting error.
    – Priyank
    Commented Jun 27, 2017 at 5:08
  • Ok, thank you. But I don't know what I have to do, I'm no programmer :/ Commented Jun 27, 2017 at 5:18
  • give some details of your extension
    – Priyank
    Commented Jun 27, 2017 at 5:43
  • Well, it's a Cielo module for automatic payments Commented Jun 27, 2017 at 5:47

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