I cannot find the Plugins folder

Hello, I am new to CARLA and I am trying to implement a RoadRunner plugins to create a CARLA Map using RoadRunner.
I am trying to follow this instructions, I downloaded CARLA 0.9.5 but there is no path carla/Unreal/CarlaUE4/Plugins.

Is it the reason behind this that I did not build CARLA from source but just downloaded it from here? I am not that experienced programmer to build something from source, but is it the only way how to be able to run RoadRunner maps in CARLA?

Thank you very much for any help