magento update configurable product error

gistfile1.txt

			$product->getTypeInstance()->setUsedProductAttributeIds(array(92)); //attribute ID of attribute 'color' in my store
			$configurableAttributesData = $product->getTypeInstance()->getConfigurableAttributesAsArray();

			$product->setCanSaveConfigurableAttributes(true);

			$configurableProductsData = array(//... ); //there data with new id's
		
			$product->setConfigurableProductsData($configurableProductsData);