it's possible to help me for solve this problem i want to install mixsiar gui i followed this step but stopping in library RGTK2
library(RGtk2) Error in inDL(x, as.logical(local), as.logical(now), ...) : unable to load shared object 'C:/Users/TOSHIBA/Documents/R/win-library/4.0/RGtk2/libs/x64/RGtk2.dll': LoadLibrary failure: %1 is not a valid Win32 application.
trying URL 'http://ftp.gnome.org/pub/gnome/binaries/win64/gtk+/2.22/gtk+-bundle_2.22.1-20101229_win64.zip' Content type 'application/zip' length 25830230 bytes (24.6 MB) downloaded 24.6 MB
Learn more about GTK+ at http://www.gtk.org If the package still does not load, please ensure that GTK+ is installed and that it is on your PATH environment variable IN ANY CASE, RESTART R BEFORE TRYING TO LOAD THE PACKAGE AGAIN Warning messages: 1: Failed to load RGtk2 dynamic library, attempting to install it. 2: In dir.create(config_path, recursive = TRUE) : 'C:\Users\TOSHIBA\Documents\R\win-library\4.0\RGtk2\gtk\x64\etc\gtk-2.0' already exists