#1

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...

Weird characters when loading tidyverse
#2

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?

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#3

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!

#4

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

#5

Finally got back to this because I've been doing some package development again and the overwhelming amount of escape codes are making it hard to check unit tests...

I reinstalled RStudio and also upgraded to 1.1.456 but the issue has persisted. I also think I've found one additional piece of evidence:

> rstudioapi::hasColorConsole()
[1] FALSE

Anyone (@EconomiCurtis or others) have any suggestions?

#6

RStudio 1.1 does support ANSI color codes in the console.

What is your setting under Tools / Global Options / Code / Display, for ANSI Escape Codes?

2018-08-30_16-35-53

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#7

Not sure how but this was set to Ignore ANSI codes (1.0 behavior) - I had no idea that setting was there! Thanks for the tip @GaryR - output from devtools::test() is legible again! Really struggled with this in part because I had no idea what to google based on what I was seeing in the console (the e[32m12e syntax).

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