Unable to access user roles

Question

We have updated an older site to a new version of Magento and given it a new look. It is live and everything is working except I can't change any user roles. When I go into System->Permissions->Roles->Add role (or click on an existing role) I get a blank screen. If I turn php errors on in index.php file I get the following error:

Fatal error: Class 'Mage_Adminfee_Helper_Data' not found in /home/sites/website/public_html/app/Mage.php on line 547

And in the system log it shows this error:

Warning: include(Mage/Adminfee/Helper/Data.php): failed to open stream: No such file or directory  in /home/sites/gwebsite/public_html/lib/Varien/Autoload.php on line 93

Any advice would be appreciated.

Thanks

Answer 1

(shot in the dark) you have an extension called adminfee that has a section in the adminhtml.xml like this:

 <acl>
    <resources>
        <something_here translate="title" module="adminfee">
            <title>Some label here</title>
            <children>
    .....

but in the config.xml of the extension the helper alias is not defined.
you need to add this in config.xml of the extension inside the <global> tag.

<helpers>
    <adminfee>
        <class>[Namespace]_Adminfee_Helper</class>
    </adminfee>
</helpers>

replace [Namespace] with the real namespace of the module.