Hi everybody.
I want to create a list of categories with k2 extension which will display the category 's title, the image and the description.
Something like this:

How can I do it?

Hello,

If these are subcategories, you can use the subcategories block to display this data. Eg: demo.nuevvo.com/sites/j3x/takai/index.php?option=com_k2&view=itemlist&layout=category&task=category&id=14&Itemid=158

Otherwise you can use the latest items from categories menu item, and not display any items.

I 'm replying with some delay, sorry for this.

I try to make a Menu Item with Menu Item Type = Categories (K2 Categories).

In the menu item 's Options, in 'Select categories', I put a category and saved it.
But when I click on the menu item in my site, an error (actually a notice) occurs:

Notice: Trying to get property of non-object in ....\components\com_k2\views\itemlist\view.html.php on line 651

Line 651 is this:
Using:I get: null.

For some reason line 640:returns null.

My menu item is the default item of the menu, it is the home.

Which version of K2 are you using?

I use 2.7.1 (K2_v2.7.1.zip) (on Joomla 3.6.2).

I also found out something not so..pleasant.
K2 catalogue can show only one K2 category.

I have 2 main categories, Products and Services.
I have put for both of them at Display settings->Other layout options->Catalogue mode=true.
Each of them has subcategories:

Products:
--Carpets
--Flooring
--Furniture

Services:
--Custom made
--Cleaning


1. In my Menu item 'Home': in Options->Select categories I put 'Products' .
My Home 's menu item's url: option=com_k2&view=itemlist&layout=category&task=category&id=20
Works ok, (except the above mentioned Notice), shows:
Carpets
Flooring
Furniture

2. In my Menu item 'Home': in Options->Select categories I put 2 categories, Products and Services.
My Home 's menu item's url: option=com_k2&view=itemlist&layout=category&task=&Itemid...
Doesn't look good to me, the link has no task and no category id while I have selected 2 categories.

And of course the result is as expected, no category is shown...
The result is an empty page.

In {site path}\components\com_k2\views\itemlist\view.html.php, line 34:
From what I understand, id can't be an array, it can only be an integer.
So a menu item can't really point towards multiple K2 categories (in Menu Item 's Options->Select Categories).
It can only point to one.
Am I right?

In file {site}\components\com_k2\views\itemlist\view.html.php,
I changed lines 640 & 641 from:...to:...and the Notice (mentioned in #158685) is gone...