Warning: Move Object does not inherit from Static Mesh Actor

What I did:

I made a blueprint class which should move object (not predefined - just variable).
In blueprint level I made an event, when I press F my not defined variable from blueprint class should set it’s value to this one I’ve selected on map (cylinder). Unfortunately I have warning which I can’t fix.

I would be very grateful for your help. I’m new to UE4 (I work with this engine maybe from 3-4 days).

‘Move Object’ does not inherit from ‘Static Mesh Actor’ ( Cast To move_object would always fail).