Please help me guys to fix it :

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

3 Answers 3


There are two possibilities:

1) Either you declared your helper in the config.xml and you did not create it in the module NameSpace/NameModule/Helper/Data.php

2) Either you created it in the module but not in the config.xml or you did it wrong.


You should have this in your config.xml:


You should also have this in :Namespace/Parcelamento/Helper/Data.php


class Namespace_Parcelamento_Helper_Data extends Mage_Core_Helper_Abstract


Now you can call your helper like this:

<?php Mage::helper('parcelamento')?>

Check in your code you will find code as below


Check in your module config file have helper name like bwlow.


replace Parcelamento with your helper name

  • Thank you everyone, It's right now ? Commented Jun 27, 2017 at 1:45

To get the website and admin panel live again, I disabled the compilation via SFTP.

You can do that by editing the root/includes/config.php file.

To disable compilation in Magento, edit includes/config.php, comment out the first line (line 28) and uncomment out the second line (line 29).

Your final code should look like this (without brackets):


Hope this helps.

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