Unable to install on RStudio server

[prokulski]

> rstudioapi::addTheme("https://raw.githubusercontent.com/patrickshox/Mojave-Dark-RStudio-Theme/master/Mojave%20Dark.rstheme", apply=TRUE, force=TRUE)

trying URL 'https://raw.githubusercontent.com/patrickshox/Mojave-Dark-RStudio-Theme/master/Mojave%20Dark.rstheme'
Content type 'text/plain; charset=utf-8' length 53061 bytes (51 KB)
==================================================
downloaded 51 KB

Error: Function addTheme not found in RStudio

RStudio version 1.1.463 on Ubuntu 18.04.

I've reinstalled rstudioapi package to v0.10 (via install.packages) - still the same.

[patrickshox]

I think updating RStudio should fix that. If that doesn't work, I'd try following the manual installation instructions.