[R] Rstudio does not run on ubuntu 20

[Dirk Eddelbuettel]

On 15 June 2020 at 14:46, Luigi Marongiu wrote:
| Hello,
| all of a sudden rstudio stopped working on ubuntu 20.04. I
| re-installed from `rstudio-1.3.959-amd64.deb` but it does not launch
| even if there is an icon. On terminal I got:
| ```
| $ rstudio
| rstudio: error while loading shared libraries: libssl.so.1.0.0: cannot
| open shared object file: No such file or directory
| $ sudo apt-get install libssl1.0.0 libssl-dev
| Reading package lists... Done
| Building dependency tree
| Reading state information... Done
| Package libssl1.0.0 is not available, but is referred to by another package.
| This may mean that the package is missing, has been obsoleted, or
| is only available from another source
| 
| E: Package 'libssl1.0.0' has no installation candidate
| 
| ```
| On internet, it is said that this library was discontinued
| (https://askubuntu.com/questions/897444/libssl-so-1-0-0-is-missing)
| R is up and running instead:
| ```
| $ R
| R version 4.0.1 (2020-06-06) -- "See Things Now"
| Copyright (C) 2020 The R Foundation for Statistical Computing
| Platform: x86_64-pc-linux-gnu (64-bit)
| 
| ```
| How can I launch studio then?

You appear to have asked the wrong part of the internet. If you go to

  packages.ubuntu.com

and search for 'libssl1.0.0', selecting "all" distributions, and "search
package name", you get the page

  https://packages.ubuntu.com/search?keywords=libssl1.0.0&searchon=names&suite=all&section=all

suggesting downloads of the package from two LTS releases (and two updates
within). Download the file eg

  cd /tmp
  wget http://mirrors.kernel.org/ubuntu/pool/main/o/openssl1.0/libssl1.0.0_1.0.2n-1ubuntu5.3_amd64.deb
  sudo dpkg -i libssl1.0.0_1.0.2n-1ubuntu5.3_amd64.deb

Lastly, you asked _on the wrong mailing list_. Questions for R use on Debian
or Ubuntu (or derived) systems should got to r-sig-debian instead. It is a
friendly place.

Dirk

-- 
http://dirk.eddelbuettel.com | @eddelbuettel | edd using debian.org