R: Error when running rattle() - "Invalid root element: 'requires'"

Question

I installed rattle package and associated GTK+ library for windows (I work in Windows 7, R version 3.4.0). No issues installing them. The library(rattle) command runs ok (no error messages), however when I run rattle() I got this error:

Error in method(obj, ...) : Invalid root element: 'requires'

Any recommendation on how to fix it?

Answer 1

Below are the known compatible version which will definetly work. 1. Try to downgrad your R version to 3.3.2. 2. Download RGtk2 version with 2.20.33 and manually install it. 3. Install rattle version as 4.1