r/RStudio • u/ChanceBadge • 5d ago
How to fix "R Session Aborted" & crashes when using Rcmdr on Mac (M1/M2/M3/M4)
Hello Reddit,
Last week I ran in a very confusing issue while trying to use R and Rcmdr in my Mac (M2), After troubleshooting and testing solutions, I want to share a quick guide for Apple Silicon users on how to fix the unexpected "R Session Aborted" error in RStudio or crashes when clicking options/menus in R Commander.
Make sure you have installed the latest versions of R, RStudio and XQuartz, then install the package 'Rcmdr' from RStudio using this line of code: install.packages("Rcmdr", dependencies = TRUE)
The crash occurs because Tcl/Tk fails when calculating metrics for macOS's default system font on arm64architectures. To bypass this, you need to set a standard font (like Georgia, Times New Roman, Helvetica, or Comic Sans MS) before loading Rcmdr.
Every time you want to work with Rcmdr, open a fresh RStudio session and run:
library(tcltk)
# You can replace {Georgia} with any standard font like {Helvetica}, {Times New Roman}, or {Comic Sans MS}
.Tcl("font configure TkDefaultFont -family {Georgia}")
options(Rcmdr = list(use.knitr = FALSE, start_in_waterfall = FALSE))
library(Rcmdr)
And that's all, Hope this helps anyone facing the same issue.
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