A fatal error occurs when I installed RGtk2 2.20.36 on RStudio version 1.2.1335. I followed the steps recommended on Installing Rattle on macOS using HomeBrew.
ProductName: Mac OS X
ProductVersion: 10.14.5
BuildVersion: 18F132
Traceback:
1: .RGtkCall("S_gtk_widget_show", object, PACKAGE = "RGtk2")
2: method(obj, ...)
3: crv$rattleGUI$getObject("rattle_window")$show()
4: rattle()