Unable to get Intellisense working on coder code-server

Question

I'm unable to get Intellisense functions to work, such as auto complete, with various languages. I've tried with R and Julia, but I'll focus on R in the example. We are running rhel 8.10 and have setup the code-server version of vscode provided by coder. Environments are managed through anaconda.

For R I have done the following steps:

• Created a conda environment
• Install the "languageserver" package to the environment via CRAN (version 0.3.16).
• Install the R extension from REditorSupport
• Install other R packages (e.g. dbscan, tidyverse)
• Created an R file similar to the hdbscan vignette

There is no auto-complete as I would expect, and after a few minutes the R language server fails with this error:

R Language Server (-1) started

Error Client R Language Server: connection is erroring

Server initialization failed. Message: Pending response rejected since connection got disposed.

R Language Server client: couldn't create connection to server

I have tried:

• Reinstalling extensions
• Recreating anaconda environments

Nothing seems to be working for R. I have Pyright installed for Python which seems to be working, minus the syntax highlighting.