Output issues with RStudio 1.1.453



I am running RStudio 1.1.453 on a macOS 10.13.5 machine with R version 3.5.1. Since The 3.5 release, I've had issues with output in my RStudio console. It occurs when there is a lot of output from particular packages, like blogdown when you are using serve_site() or devtools::check(). Here is an example of what some output from devtools::test() looks like:

══ e[1mResultse[22m ════════════════════════════════════════════════════════════════════════════════════════════════════════════
e[36mDuration: 0.4 se[39m

OK:       e[32m12e[39m
Failed:   e[31m2e[39m
Warnings: e[32m0e[39m
Skipped:  e[32m0e[39m

e[31mDon't worry, you'll get it.e[39m

If I open up R instead of RStudio, I get the expected output:

══ Results ════════════════════════════════════════════════════════════════════
Duration: 0.2 s

OK:       12
Failed:   2
Warnings: 0
Skipped:  0

Don't worry, you'll get it.

I've tried googling to no avail. I have an iMac that has identical versions of R and RStudio but is running macOS 10.12.6 that does not produce this behavior. Any help resolving this bug would be very appreciated! I had hope it would resolve with R 3.5.1 but alas...


Not that it resolves the issue, but these are ANSI escape codes used for defining a color in the terminal. And I guess it's not escaping on your system for some reason.

Since you say it works fine with R, perhaps uninstall and reinstall rstudio?


Thanks @EconomiCurtis - I'm traveling right now but will find some time to give this a shot. I've upgraded RStudio since this error first cropped up, so I would think this would have helped, but will try again!


Hi @EconomiCurtis - no dice - I re-installed RStudio but the escape codes remain. Thanks for the suggestion!