RStudio, Stylo, MacOS Sierra 10.12.6, XQuartz

Hi, after installing R Studio, Xquartz and package "stylo", I'm not able to run stylo library.

When I type


It doesn't return


it just blocks itself and I have to force RStudio shutdown. Same thing with R GUI.

I don't know if this may be caused from XQuartz, or if, once I installed XQuartz I have to do something else in order to set RStudio working with it.

Could anyone help, please? Thank you