Magento 1.9 Layered Navigation not working

[pradeep23]

Hello everyone.

A new comer to this platform here

I have a custom module in which Im showing a product collection based on attribute. I want to show magento layered navigation in left side of the page. 

<reference name="left">
         <block type="catalog/layer_view" name="catalog.leftnav" template="catalog/layer/view.phtml "/>
</reference>

This is the layout code Im using. But when i load my module's page, its throwing an error.

Fatal error: Call to a member function getSortedChildren() on boolean in C:\xampp\htdocs\xxxxxxxxxx\app\design\frontend\rwd\default\template\catalog\layer\state.phtml on line 36

How can I solve this issue?

Thank You

[OST Agency]

Found the solution.

Under the Anchor category in the RWD theme's catalog.xml, change this

<reference name="left_first">
       <block type="catalog/layer_view" name="catalog.leftnav" after="currency" template="catalog/layer/view.phtml">
           <block type="core/text_list" name="catalog.leftnav.state.renderers" as="state_renderers" />
       </block>
   </reference>

to this

 <reference name="left">
       <block type="catalog/layer_view" name="catalog.leftnav" after="currency" template="catalog/layer/view.phtml">
           <block type="core/text_list" name="catalog.leftnav.state.renderers" as="state_renderers" />
       </block>
   </reference>
Yep, that is sadly all it took. No idea why _first was added there if it just causes layered nav to not function.