Problem installing gWidgets2tcltk

Hi, when I try to install package gWidgets2tcltk I get this error. How can I solve this issue?

Installing package into ‘/cloud/lib/x86_64-pc-linux-gnu-library/4.2’
(as ‘lib’ is unspecified)
trying URL 'http://rspm/default/linux/focal/latest/src/contrib/gWidgets2tcltk_1.0-8.tar.gz'
Content type 'application/x-gzip' length 509228 bytes (497 KB)

downloaded 497 KB

  • installing source package ‘gWidgets2tcltk’ ...
    ** package ‘gWidgets2tcltk’ successfully unpacked and MD5 sums checked
    ** using staged installation
    ** R
    ** demo
    ** inst
    ** byte-compile and prepare package for lazy loading
    Warning message:
    In fun(libname, pkgname) : couldn't connect to display ":0"
    Error in structure(.External(.C_dotTclObjv, objv), class = "tclObj") :
    [tcl] invalid command name "font".

Error: unable to load R code in package ‘gWidgets2tcltk’
Execution halted
ERROR: lazy loading failed for package ‘gWidgets2tcltk’

  • removing ‘/cloud/lib/x86_64-pc-linux-gnu-library/4.2/gWidgets2tcltk’
    Warning in install.packages :
    installation of package ‘gWidgets2tcltk’ had non-zero exit status

The downloaded source packages are in

Sadly, this package requieres tcl/tk and nothing depending on X11 will work in RStudio Cloud because it runs on headless servers.

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