我安装了一个模块扩展，它在管理员中抛出一个 fatal error “ fatal error :类‘Mage_Giftcards_Helper_Data’在 ..../app/Mage.php 中找不到，第 546 行”。
我已提交此链接 https://stackoverflow.com/a/9191286/2919940还有这个链接https://magento.stackexchange.com/a/7133/3693
但是我有
<global>
<helpers>
<giftcards>
<class>Webtex_Giftcards_Helper</class>
</giftcards>
</helpers>
</global>
在我的 config.xml 中，我有这个类
class Webtex_Giftcards_Helper_Data extends Mage_Core_Helper_Data{
// my methods
}
在“/app/code/local/Webtex/Giftcards/Helper/Data.php”路径中声明。
我禁用了编译器并通过创建空的“var/cache”目录清除了缓存。
我到处都发现 config.xml 应该定义辅助类，而 Data.php 应该声明辅助类。
但我的情况下两者都有，这个错误的原因可能是什么？我也在新安装的 magento 上测试了该模块，
Magento 版本是 1.7.0.2
请为这个错误提供帮助？？如果存在类名冲突，我们该如何调试？？
更新: 这是我的 app/etc/modules/Webtex_Giftcards.xml 文件。
<?xml version="1.0"?>
<config>
<modules>
<Webtex_Giftcards>
<active>true</active>
<codePool>local</codePool>
<name>Webtex Gift Cards</name>
</Webtex_Giftcards>
</modules>
</config>
这是我的 system.xml 文件
<?xml version="1.0"?>
<config>
<tabs>
<webtex translate="label" module="giftcards">
<label>WebTex</label>
<sort_order>300</sort_order>
</webtex>
</tabs>
<sections>
<giftcards module="giftcards">
<tab>webtex</tab>
<label>Gift Cards</label>
<frontend_type>text</frontend_type>
<sort_order>200</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<groups>
<default module="giftcards">
<label>Defaults</label>
<frontend_type>text</frontend_type>
<sort_order>10</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<fields>
<min_card_value>
<label>Min Gift Card Value</label>
<frontend_type>text</frontend_type>
<sort_order>20</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</min_card_value>
<max_card_value>
<label>Max Gift Card Value</label>
<frontend_type>text</frontend_type>
<sort_order>21</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</max_card_value>
<show_in_shopping_cart>
<label>Show In Shopping Cart Page</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>22</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</show_in_shopping_cart>
<show_as_payment_method>
<label>Show As Payment Method</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>22</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</show_as_payment_method>
<show_mail_delivery_date_field>
<label>Show email delivery date field</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>23</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</show_mail_delivery_date_field>
</fields>
</default>
<email module="giftcards">
<label>Email Options</label>
<frontend_type>text</frontend_type>
<sort_order>50</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<fields>
<card_picture>
<label>Use default GiftCard picture for Email</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_yesno</source_model>
<sort_order>24</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
<comment>Set "No" for use product picture</comment>
</card_picture>
<email_template>
<label>Template for e-mail</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_email_template</source_model>
<sort_order>30</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</email_template>
<print_template>
<label>Template for print</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_email_template</source_model>
<sort_order>30</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</print_template>
<offline_template>
<label>Template for offline</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_email_template</source_model>
<sort_order>30</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</offline_template>
<confirm_template>
<label>Template for confirmation</label>
<frontend_type>select</frontend_type>
<source_model>adminhtml/system_config_source_email_template</source_model>
<sort_order>30</sort_order>
<show_in_default>1</show_in_default>
<show_in_website>1</show_in_website>
<show_in_store>1</show_in_store>
</confirm_template>
</fields>
</email>
</groups>
</giftcards>
</sections>
</config>
这是我的 config.xml 文件。
<?xml version="1.0"?>
<config>
<modules>
<Webtex_Giftcards>
<version>3.3.1</version>
</Webtex_Giftcards>
</modules>
<admin>
<routers>
<giftcards>
<use>admin</use>
<args>
<module>Webtex_Giftcards</module>
<frontName>giftcards</frontName>
</args>
</giftcards>
<adminhtml>
<args>
<modules>
<Webtex_Giftcards before="Mage_Adminhtml">Webtex_Giftcards_Adminhtml</Webtex_Giftcards>
</modules>
</args>
</adminhtml>
</routers>
</admin>
<frontend>
<routers>
<checkout>
<args>
<modules>
<Webtex_Giftcards before="Mage_Checkout">Webtex_Giftcards</Webtex_Giftcards>
</modules>
</args>
</checkout>
</routers>
<layout>
<updates>
<giftcards>
<file>giftcards.xml</file>
</giftcards>
</updates>
</layout>
<translate>
<modules>
<Webtex_Giftcards>
<files>
<default>Webtex_Giftcards.csv</default>
</files>
</Webtex_Giftcards>
</modules>
</translate>
</frontend>
<global>
<rewrite>
<giftcards_giftcards_index>
<from><![CDATA[#^/customer/giftcards/#]]></from>
<to>/giftcards/giftcards/</to>
</giftcards_giftcards_index>
<giftcards_giftcards_balance>
<from><![CDATA[#^/customer/giftcards/balance/#]]></from>
<to>/giftcards/giftcards/balance/</to>
</giftcards_giftcards_balance>
<giftcards_giftcards_print>
<from><![CDATA[#^/customer/giftcards/print/#]]></from>
<to>/giftcards/giftcards/print/</to>
</giftcards_giftcards_print>
<giftcards_giftcards_apply>
<from><![CDATA[#^/customer/giftcards/apply/#]]></from>
<to>/giftcards/giftcards/apply/</to>
</giftcards_giftcards_apply>
</rewrite>
<models>
<giftcards>
<class>Webtex_Giftcards_Model</class>
<resourceModel>giftcards_mysql4</resourceModel>
</giftcards>
<giftcards_mysql4>
<class>Webtex_Giftcards_Model_Mysql4</class>
<entities>
<giftcards>
<table>giftcards_card</table>
</giftcards>
<cardslist>
<table>giftcards_cardlist</table>
</cardslist>
<order>
<table>giftcard_order</table>
</order>
</entities>
</giftcards_mysql4>
<sales>
<rewrite>
<order>Webtex_Giftcards_Model_Sales_Order</order>
</rewrite>
</sales>
</models>
<resources>
<giftcards_setup>
<setup>
<module>Webtex_Giftcards</module>
<class>Mage_Catalog_Model_Resource_Eav_Mysql4_Setup</class>
</setup>
<connection>
<use>core_setup</use>
</connection>
</giftcards_setup>
</resources>
<helpers>
<giftcards>
<class>Webtex_Giftcards_Helper</class>
</giftcards>
</helpers>
<blocks>
<giftcards>
<class>Webtex_Giftcards_Block</class>
</giftcards>
</blocks>
<events>
<catalog_product_save_before>
<observers>
<webtex_giftcards_observer_catalog_product_save_after>
<type>singleton</type>
<class>giftcards/observer</class>
<method>catalogProductSaveBefore</method>
</webtex_giftcards_observer_catalog_product_save_after>
</observers>
</catalog_product_save_before>
<order_cancel_after>
<observers>
<webtex_giftcards_observer_sales_order_cancel_after>
<type>singleton</type>
<class>giftcards/observer</class>
<method>salesOrderCancelAfter</method>
</webtex_giftcards_observer_sales_order_cancel_after>
</observers>
</order_cancel_after>
<sales_order_payment_refund>
<observers>
<webtex_giftcards_observer_sales_order_creditmemo_refund>
<type>singleton</type>
<class>giftcards/observer</class>
<method>saleOrderPaymentRefund</method>
</webtex_giftcards_observer_sales_order_creditmemo_refund>
</observers>
</sales_order_payment_refund>
<sales_order_save_after>
<observers>
<webtex_giftcards_observer_sales_order_save_after>
<type>singleton</type>
<class>giftcards/observer</class>
<method>salesOrderSaveAfter</method>
</webtex_giftcards_observer_sales_order_save_after>
</observers>
</sales_order_save_after>
<sales_model_service_quote_submit_after>
<observers>
<webtex_giftcards_observer_checkout_type_onepage_save_order_after>
<type>singleton</type>
<class>giftcards/observer</class>
<method>checkoutTypeOnepageSaveOrderAfter</method>
</webtex_giftcards_observer_checkout_type_onepage_save_order_after>
</observers>
</sales_model_service_quote_submit_after>
<core_block_abstract_to_html_after>
<observers>
<webtex_giftcards_observer_checkpriceiszero>
<type>singleton</type>
<class>giftcards/observer</class>
<method>checkpriceiszero</method>
</webtex_giftcards_observer_checkpriceiszero>
</observers>
</core_block_abstract_to_html_after>
<sales_quote_collect_totals_after>
<observers>
<webtex_giftcards_discount_observer_testdiscountquote>
<type>singleton</type>
<class>giftcards/discount_observer</class>
<method>testDiscountQuote</method>
</webtex_giftcards_discount_observer_testdiscountquote>
</observers>
</sales_quote_collect_totals_after>
</events>
<template>
<email>
<giftcards_email_email_template translate="label" module="giftcards">
<label>Gift Card E-mail</label>
<file>giftcard_email.html</file>
<type>html</type>
</giftcards_email_email_template>
<giftcards_email_print_template translate="label" module="giftcards">
<label>Gift Card Print</label>
<file>giftcard_print.html</file>
<type>html</type>
</giftcards_email_print_template>
<giftcards_email_offline_template translate="label" module="giftcards">
<label>Gift Card Offline</label>
<file>giftcard_offline.html</file>
<type>html</type>
</giftcards_email_offline_template>
<giftcards_email_confirm_template translate="label" module="giftcards">
<label>Gift Card Confirm</label>
<file>giftcard_confirm.html</file>
<type>html</type>
</giftcards_email_confirm_template>
</email>
</template>
<catalog>
<product>
<type>
<giftcards module="giftcards">
<label>Gift Card</label>
<model>giftcards/product_type_giftcards</model>
<price_model>giftcards/product_price</price_model>
<is_qty>1</is_qty>
<composite>0</composite>
</giftcards>
</type>
</product>
</catalog>
<sales>
<quote>
<totals>
<discount>
<class>giftcards/discount</class>
<after>subtotal,shipping</after>
<before>grand_total</before>
</discount>
</totals>
</quote>
</sales>
</global>
<adminhtml>
<sales>
<order>
<create>
<available_product_types>
<giftcards />
</available_product_types>
</create>
</order>
</sales>
</adminhtml>
<default>
<giftcards>
<email>
<email_template>giftcards_email_email_template</email_template>
<print_template>giftcards_email_print_template</print_template>
<offline_template>giftcards_email_offline_template</offline_template>
<confirm_template>giftcards_email_confirm_template</confirm_template>
</email>
</giftcards>
</default>
<adminhtml><layout><updates><blog><file>webtex/giftcards/giftcards.xml</file></blog></updates></layout></adminhtml>
<crontabs>
<jobs>
<schedule><cron_expr>0 1 * * *</cron_expr></schedule>
<run><model>giftcards/observer::sendEmailByDeliveryDate</model></run>
</jobs>
</crontabs>
</config>
谢谢
最佳答案
我的回答与@Pedram Behroozi 的回答非常相似，如果不是因为奇怪的评论声誉限制，我可能会把它添加为评论。
当我遇到这个问题时，是因为混淆了 adminhtml.xml 中的“module”属性。
<config>
<menu>
<catalog>
<children>
<productfeed translate="title" module="productfeed">
<title>Product Data Feed</title>
<action>adminhtml/productfeed/</action>
<sort_order>90</sort_order>
</productfeed>
</children>
</catalog>
</menu>
</config>
Pedram 说模块名称必须小写且没有 namespace 时，他完全是不正确的。当您提供“翻译”属性时，相应的“模块”属性会告诉 Magento 使用什么助手进行翻译。因此，重要的是它与 config.xml 中 helpers 节点内的节点名称完全匹配。我的错误是因为在该节点中我包含了命名空间:
<config>
<global>
<helpers>
<etw_productfeed>
<class>Etw_Productfeed_Helper</class>
</etw_productfeed>
</helpers>
</global>
</config>
在 Alan Storm 的文章中 "Admin Hello World Revisited"你可以看到他在他的模块引用中使用了命名空间，并且仍然有效。所以无论哪种方式都可以，只要 adminhtml.xml 中的内容与 config.xml 中的内容相匹配。
关于php - Magento : Fatal error: Class 'Mage_Giftcards_Helper_Data' not found in . ..../app/Mage.php 第 546 行，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19590164/