1

I can't access System -> Configuration in the backend anymore. I get the message Class 'Mage_Helloworld_Helper_Data' not found.

How can I debug this, I am new to magento.


I found a Module named "HelloWorld" in app/code/local/Webkochshop.

This is the snippet where the helper is at:

<global>
    <helpers>
        <Webkochshop_HelloWorld>
            <class>Webkochshop_HelloWorld_Helper</class>
        </Webkochshop_HelloWorld>
    </helpers>
</global>
  • 1
    check your helpers tag in Helloworld module's config.xml file. – kunj Jun 4 '18 at 13:03
  • @kunj, Thank you kunj, thanks to you I was able to solve it, by changing Webkochshop_HelloWorld to the modules name in lowcase -> helloworld. I will accept your answer if you write one. – Black Jun 4 '18 at 13:08
  • yes, maybe you have used helloworld in system configuration XML code. – kunj Jun 4 '18 at 13:21
1

Try this:

<global>
    <helpers>
        <Webkochshop_HelloWorld>
            <class>Webkochshop_HelloWorld_Helper</class>
        </Webkochshop_HelloWorld>
    </helpers>
</global>

Webkochshop_HelloWorld should in module="Webkochshop_HelloWorld" OR change as per system config module="helloworld" in:

<global>
        <helpers>
            <helloworld>
                <class>Webkochshop_HelloWorld_Helper</class>
            </helloworld>
        </helpers>
    </global>
2

I had to change my code to this:

<global>
    <helpers>
        <helloworld>
            <class>Webkochshop_HelloWorld_Helper</class>
        </helloworld>
    </helpers>
</global>

helloworld is the module name in lower case letters.

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