Modx add-on creation, an error occurs, how to solve?

Question

PHP

Good evening everyone.
I'm making an addon for modx revolution.
The task is simple, implement the addition of data through the form by guests, and confirm / edit them in the admin panel, etc.
I searched a lot, but I found this in the Russian-language spaces. Here
, at the stage of changing the home.class.php file (for working with ajax Manager)
, an error occurs on the add-on page in the admin panel

, how to resolve it .. already worn out ... I tried everything from scratch 7 times do as instructed, the error is not gone.
who will tell?
Maybe someone will throw another resource-instruction for creating an add-on?
Or what to dig, it seems, something is not connected ...
The error was solved by changing the home.class.php file, it
should be like this:

public function loadCustomCssJs() {
        $this->addJavascript($this->Reviews->config['jsUrl'] . 'mgr/misc/utils.js');
        $this->addJavascript($this->Reviews->config['jsUrl'] . 'mgr/misc/combo.js');
        $this->addJavascript($this->Reviews->config['jsUrl'] . 'mgr/widgets/items.windows.js');
        $this->addJavascript($this->Reviews->config['jsUrl'] . 'mgr/widgets/items.grid.js');
        $this->addJavascript($this->Reviews->config['jsUrl'] . 'mgr/widgets/home.panel.js');
        $this->addJavascript($this->Reviews->config['jsUrl'] . 'mgr/sections/home.js');
        $this->addHtml('<script type="text/javascript">
        Ext.onReady(function() {
            MODx.load({ xtype: "reviews-page-home"});
        });
        </script>');
    }

Answer 1

I think the article will help you - webhow.ru/modx-revolution/modxadd/modx-revolution-...