R LSP crashes in VSCode - username HOME directory with an accent

[sbwiecko]

Hi everyone, there is an issue in VSCode with R LSP immediately when I launch the program with an R or Rmd file:

R Language Server (13384) started
R library paths: C:/Program Files/R/R-4.3.3/library

[2024-03-26 16:31:59.293] connection type: tcp at  50997
[2024-03-26 16:31:59.307] connected
Error in file.exists(home) : 
  file name conversion problem -- name too long?
Calls: <Anonymous> ... within.list -> eval -> eval -> make_profiles -> file.exists
Execution halted

I believe it must come from the strange character of my username:

r$> file.path(Sys.getenv("HOME"))
[1] "C:\\Users\\Sébastien\\Documents"

[sbwiecko]

A temporary fix is to create a directory whose path does not have characters too weird for LSP, e.g., C:\R_HOME, and to set the R Home Directory accordingly, as explained elsewhere:

C:\ ❯ [System.Environment]::SetEnvironmentVariable("R_USER", "C:\R_HOME", [System.EnvironmentVariableTarget]::User)

Then everything works smoothly

R Language Server (11064) started
R library paths: C:/Program Files/R/R-4.3.3/library

[2024-03-27 13:51:41.163] connection type: tcp at  54013

[2024-03-27 13:51:41.174] connected

[2024-03-27 13:51:41.486] received:  Content-Length: 5942

[2024-03-27 13:51:41.716] received payload.

[2024-03-27 13:51:41.716] handling request:  initialize

[Yunuuuu]

This is not a problem of languageserver package

You can google the error message, this might be an issue with R itself

Error in file.exists(home) :  file name conversion problem -- name too long?

[sbwiecko]

I am sure it is not an issue with the latest versions of R, as it, outside the languageserver environement, gives me the right answer

r$> file.path(Sys.getenv("HOME"))
[1] "C:\\Users\\Sébastien\\Documents"