custom module cannot find index action

Question

I am creating my first custom module for magento and I already have some issues. What I am trying to do is to create new section under catalog tab in admin panel (this I already made) but when I clicked my custom section it does not finds route (or in other words it not finds index action) and I get redirected to 404 error page.

Here is what I already have: app/etc/modules/Company_myModule.xml

<?xml version="1.0"?>
<config>
    <modules>
        <Company_myModule>
            <active>true</active>
            <codePool>local</codePool>
        </Company_myModule>
    </modules>
</config>

app/code/local/Company/myModule/controllers/Adminhtml/ReportController.php

<?php

class Company_myModule_Adminhtml_ReportController extends Mage_Adminhtml_Controller_Action
{
    public function indexAction()
    {
    echo "test";
    }
}

app/code/local/Company/myModule/etc/config.xml

<?xml version="1.0" ?>
<config>
    <modules>
        <Company_myModule>
            <version>1.0.0</version>
        </Company_myModule>
    </modules>
    <global>
        <helpers>
            <Company_myModule>
                <class>Company_myModule_Helper</class>
            </Company_myModule>
        </helpers>
    </global>   
</config>

app/code/local/Company/myModule/etc/adminhtml.xml

<?xml version="1.0" encoding="UTF-8"?>
<config>
    <menu>
        <catalog>
             <children>
                <myModule translate="title" module="company_myModule">
                    <title>myModule title</title>
                    <sort_order>2</sort_order>     
        <action>adminhtml/report</action>
                </myModule>
             </children>
    </catalog>
</menu>
<acl>
    <resources>
        <admin>
            <children>
                <catalog>
                    <title>myModule title</title>
                    <sort_order>2</sort_order>
                </catalog>
            </children>
        </admin>
    </resources>
</acl>
</config>

Any ideas why it not able to find route to my index action in ReportController ?

Answer 1

You need to set up a Helper

app/code/local/Company/myModule/Helper/Data.php

<?php
class Company_myModule_Helper_Data extends Mage_Core_Helper_Abstract
{
}

Also, you'll need to add a router to your page in config.xml, like this:

....
<admin>
    <routers>
        <adminhtml>
            <args>
                <modules>
                    <Company_myModule before="Mage_Adminhtml">Company_myModule_Adminhtml</Company_myModule>
                </modules>
            </args>
        </adminhtml>
    </routers>
</admin>
....

Answer 2

You are missing the router declaration in your module.
In config.xml add this as a sibling node for <global>.

<admin>
    <routers>
        <adminhtml>
            <args>
                <modules>
                    <Company_myModule before="Mage_Adminhtml">Company_myModule_Adminhtml</Company_myModule>
                </modules>
            </args>
        </adminhtml>
    </routers>
</admin>

And make sure you place your controller in app/code/local/Company/myModule/controllers/Adminhtml/ReportController.php.
I also suggest not naming your controller ReportController.php there is already a file with that name in Mage/Adminhtml/controllers and your controller might override the core one.