How to filter topics using the custom fields?

Hi,

Kindly help me. How to filter the topic using the custom fields.

I have created the custom fields using the GD Custom posts and taxonomy tools. I need to filter. I have followed this step but its not working.

http://internet-alacarte.com/adding-custom-fields-to-bbpress-topics-then-filtering-topics-by-custom-fields-using-views/

Thanks in advance.

https://wordpress.org/plugins/bbp-views/