Windows 11: Could not locate an R installation on the system

RStudio IDE
1

I updated R and R Studio to newest version. Since then RStudio throws the error: Could not locate an R installation on the system. However, if I press Ctrl at startup then RStudio offers me to use R 4.6.0.

  • I tried deinstalling and installing R and RStudio several times,
  • I delete/renamed the %localapp%\RStudio directories, and
  • I can start R 4.6. from the terminal

but nothing helped. Any other ideas what I could do?

Thanks a lot Sigbert

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2

Does it help when you configure RStudio to use a specific R version instead of your system's default ( Tools > Global Options > General > R version > Choose specific version)?

And do you know if R 4.6 installer did update registry with a new current R version and location? You could check HKEY_LOCAL_MACHINE\SOFTWARE\R-core\R for this and/or just run RSetReg.exe from installation location (e.g. C:\Program Files\R\R-4.6.0\bin\x64 ) to add or update those registry entries ( R for Windows FAQ : Does R use the Registry?).

I personally prefer rig for managing R installations, also makes it easy to quickly switch default R version or just start RStudio with a specific R version.

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3
  1. Choosing a specific R version did not help.
  2. Running RSetReg.exe did not help.
  3. Installing the new RStudio did not help.

Any other ideas?

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