I try to install the lastest version of R on my Ubuntu 22.04.3. For that I need to run first sudo apt-get update but in the output I have Signed-By conflict issues :
E: Conflicting values set for option Signed-By regarding source https://cloud.r-project.org/bin/linux/ubuntu/ jammy-cran40/: /etc/apt/trusted.gpg.d/marutter_pubkey.gpg != /usr/share/keyrings/r-project.gpg
E: The list of sources could not be read.
I try to remove it :
sudo rm /etc/apt/trusted.gpg.d/marutter_pubkey.gpg
but it couldn't be removed
rm: cannot remove '/etc/apt/trusted.gpg.d/marutter_pubkey.gpg': No such file or directory
cat /etc/apt/sources.list.d/r-project.list
deb [signed-by=/usr/share/keyrings/r-project.gpg] https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/
deb [signed-by=/usr/share/keyrings/r-project.gpg] https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/
is the ppa:marutter/rrutter4.0 installed?
sudo apt list --installed | grep marutter/rrutter4.0
WARNING: apt does not have a stable CLI interface. Use with caution in scripts.
E: Conflicting values set for option Signed-By regarding source https://cloud.r-project.org/bin/linux/ubuntu/ jammy-cran40/: /etc/apt/trusted.gpg.d/marutter_pubkey.gpg != /usr/share/keyrings/r-project.gpg
E: The list of sources could not be read.
I really don't know what to do. please help
