Page not found in admin panel after applying patch 6788 and editing config.xml

Question

After installing the patch I tried to change the config.xml of the extension. The extension has two config.xml files. In below you can find the revision I made, but still I get page not found error.

<admin>
    <routers>
        <gremlincustom>
            <use>admin</use>
            <args>
                <module>Junaidbhura_Gremlincustom</module>
                <frontName>gremlincustom</frontName>
            </args>
        </gremlincustom>
    </routers>
</admin>

To

<admin>
    <routers>
        <adminhtml>
            <args>
                <modules>
                    <gremlincustom after="Mage_Adminhtml">Junaidbhura_Gremlincustom_Adminhtml</gremlincustom>
                    <frontName>gremlincustom</frontName>
                </modules> 
            </args> 
        </adminhtml> 
    </routers> 
</admin>

and

<admin>
    <routers>
        <gremlinreports>
            <use>admin</use>
            <args>
                <module>Junaidbhura_Gremlinreports</module>
                <frontName>gremlinreports</frontName>
            </args>
        </gremlinreports>
    </routers>
</admin>

To

<admin>
    <routers>
        <adminhtml>
            <args>
                <modules>
                    <gremlinreports after="Mage_Adminhtml">Junaidbhura_Gremlinreports_Adminhtml</gremlinreports>
                    <frontName>gremlinreports</frontName>
                </modules> 
            </args> 
        </adminhtml> 
    </routers> 
</admin> 

Answer 1

You might also need to adjust the calls of your admin controller(s). I ran into the same issue today where the system entry in the adminhtml.xml still referenced to the old frontname. Note the change in <action>.

Old:

<config>
    <menu>
        <system>
            <children>
                <your_module translate="title" module="your_module">
                    <title>Your Title</title>
                    <sort_order>20</sort_order>
                    <action>your_module/your_controller</action>
                </your_module>
            </children>
        </system>
    </menu>
...
</config>

New:

<config>
    <menu>
        <system>
            <children>
                <your_module translate="title" module="your_module">
                    <title>Your Title</title>
                    <sort_order>20</sort_order>
                    <action>adminhtml/your_controller</action>
                </your_module>
            </children>
        </system>
    </menu>
...
</config>

Edit: There can also be other places in the code where you need to adapt the controller calls, depending on your extensions.