Search Stack Overflow for your most recent error message.

You can install the package with devtools as such:

# install.packages("devtools")
devtools::install_github("dgrtwo/tracestack")

Load it with

library(tracestack)

Then after you get an error message, simply run:

tracestack()

As an experiment, this package was written entirely in GitHub's file editor on an iPhone. As an alternative to RStudio, I do not neccessarily recommend it.