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Editorial Team
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Asked: 2026-05-13T00:55:21+00:00

I have come across a bizarre error in the Magento shop I’m developing and

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I have come across a bizarre error in the Magento shop I’m developing and despite my inquiries online, it appears no one else has ever seen this exact error under the same circumstances. Lemme ‘splain.

The full text of the error message is this:

Fatal error: Call to a member function getSku() on a non-object in /path/on/server/app/code/core/Mage/Catalog/Model/Product/Option/Type/Select.php on line 221.

Now, others have gotten this error message–it was addressed and supposedly fixed in the 1.3.1 roadmap (http://www.magentocommerce.com/roadmap/release/1.3.1). However, the circumstances of those other error messages were where they tried to add an item to the cart–if the item had custom options, it would loop to this error message.

My situation is that I have a SIMPLE item–not bundled or configurable–without any custom options. I can add it to the cart without any trouble. But if I run through the entire checkout procedure, upon placing the order, the error message appears on a white screen. The URL in the browser shows me I’m on the checkout success page.

AND, the order appears to go through perfectly, getting registered by both Magento AND Authorize.net.

I’ve tried debugging the error as far as I can go, but this one’s got me stumped.

For reference, I’m in Magento 1.3.2.4. When I first received the error I reinstalled all the core files and was still able to replicate the error.

I’m going to continue to test, but if anyone has ANY bright ideas about why this is happening, I’d love to hear your thoughts. I’m so close to launch and this thing could put the kibosh on the whole thing.

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1 Answer

  1. Editorial Team

    I’ve had this error before and was also not getting any hits on how to solve it. So, I had to modify the core files to fix the error message. The problem is Mage_Catalog_Model_Product_Option::getValueById() can return a null value BUT Catalog/Model/Product/Option/Type/Select.php is NOT checking for this possibility.

    Here’s the solution that worked for me:

    Open app/code/core/Mage/Catalog/Model/Product/Option/Type/Select.php

    Change line 121 from:

    $result = $option->getValueById($optionValue)->getSku();

    To:

    $o= $option->getValueById($optionValue);
$result = is_object($o) ? $o->getSku() : null;

    I always hate changing core files but when there’s a bug there’s not much else I can do!

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