RStudio v1.1 crashes - "Unable to establish connection with R session"

[mhschel]

@Filipe

Error: Status code 400 returned

I first encountered this problem in September. RStudio will throw a 'Status code 400 returned' error every so often during any task, including writing code, saving files, executing code and startup. I have reinstalled RStudio (including removing .rstudio-desktop from home directory), upgraded R, worked in different projects and worked in those projects without loading any libraries, but the problem reemerges. Sometimes it can happen every 5 seconds, sometimes I can go as long as 120 seconds without seeing the error. Any idea what could be happening? Here is a screenshot of what it looks like: (I have more, but may not post multiple images.) [41] Diagnostics report: [1] "1.1.383" $R [1]…

Thank you.