RStudio Server error when restarting the R session

Question

This recently began to appear whenever I restart my RStudio Server session:

Error in tools:::httpdPort > 0 : 
  comparison (6) is possible only for atomic and list types

It does not seem to relate to running any code (all I do to reproduce it is to go to the Session menu and then click "Restart R"). It appears that we are running version 0.97.551.

What is this error and how can we resolve it?

Answer 1

This has been fixed. Try updating everything to the latest version.

https://support.rstudio.com/hc/en-us/community/posts/202656007-Cryptic-error-on-starting-RStudio-daily-with-R-devel

What does "Error in tools:::httpdPort <= 0L : ...." in Rstudio means?