Help problem package for Mixiar

[LeonsRixson]

when i write this script for mixsiar GUI installing; install.packages(c("gWidgets", "RGtk2", "gWidgetsRGtk2", "devtools")), i have error code Warning in install.packages : packages ‘gWidgets’, ‘RGtk2’, ‘gWidgetsRGtk2’ are not available (for R version 3.6.3)

Fyi, my OS Win 11, My Rstudio version R-4.2.0, Please help me, how to solve those problems? thank you

best regards