Magento Fatal Error: Call to member function getSku() on a non-object

错误描述
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.
或
Fatal error: Call to a member function getSku() on a non-object in

app/code/core/Mage/Catalog/Model/Product/Type/Configurable.php on line 710
或
Fatal error: Call to a member function getSku() on a non-object in ...

解决办法
添加如下文档
/app/code/local/Mage/Catalog/Model/Product/Type/Select.php
或
/app/code/local/Mage/Catalog/Model/Product/Type/Configurable.php

找到出错位置，进行如下修改

$o= $simpleOption->getProduct($product);
$simple_sku = is_object($o) ? $o->getSku() : null; 

清除缓存，问题解决！