Doesn't create cache & Always show no related posts

If you registered your custom post type, you should add 'yarpp_support' => true at the same time. See the FAQ for details.

If you’re saying that you’re using a theme or plugin that automatically uses custom post types, then you’ll need to talk to the theme/plugin creator to see how to add YARPP support.

I added 'yarpp_support' => true to all custom post type while registering the custom post type. I did all necessary steps.
I’m developing the theme. I use lots of suggestions but nothing is useful.

It build cache when I install YARPP Experiments otherwise it don’t. But it don’t show Related Post on site. Currently I’m developing site so I tested all this on localhost

Hello,
I got the solution.
It’s just select the Display results from all post types option and I got the related posts. ??

Good. Glad that you got it working!