Rstudio does not launch in Ubuntu 21.04
Solution 1:
Reinstall really newest RStudio by using below commands:
cd ~/Downloads
wget -c https://download1.rstudio.org/desktop/bionic/amd64/rstudio-1.4.1717-amd64.deb
sudo apt-get install ./rstudio-1.4.1717-amd64.deb