I originally posted this on the Stack Overflow site. I understand that it is inappropriate to ask the same question on multiple sites, but they were unable to help and I was told to come here.
I am unable to install the R package ggplot2 because it depends on the package digest, which requires R (>= 3.3.0) and I only have 3.2.3. I tried upgrading R as described here, but I get an unusual message after the first line and an error after the third. The results of the first 3 lines are below exactly as the appear on the command terminal, edited for privacy and empty lines before commands added for clarity.
Name1@Name2 ~ $ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9 [sudo] password for Name1: Executing: /tmp/tmp.BIQ28xf0ql/gpg.1.sh --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9 gpg: requesting key E084DAB9 from hkp server keyserver.ubuntu.com gpg: key E084DAB9: "Michael Rutter <email@example.com>" not changed gpg: Total number processed: 1 gpg: unchanged: 1 Name1@Name2 ~ $ sudo echo "deb http://cran.wustl.edu/bin/linux/ubuntu xenial/" | sudo tee -a /etc/apt/sources.list deb http://cran.wustl.edu/bin/linux/ubuntu xenial/ Name1@Name2 ~ $ sudo apt update E: Malformed entry 2 in list file /etc/apt/sources.list (Suite) E: The list of sources could not be read.
All commands after the third give the same errors, with commands 4 and 6 giving the errors twice for some reason.
I will be frank and admit that this whole think is very beyond me and I am just copying and pasting the code that supplied without understanding most of it. Any help will be greatly appreciated.