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ubuntu安装R遇到如下问题：

root@DESKTOP-1N42TVH:/home/test2# apt install r-base-core

1、系统内核

root@DESKTOP-1N42TVH:/home/test2# lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 20.04.4 LTS
Release:        20.04
Codename:       focal

2、备份源

root@DESKTOP-1N42TVH:/home/test2# mv /etc/apt/sources.list /etc/apt/sources.list_bak

3、更新源

root@DESKTOP-1N42TVH:/home/test2# vim /etc/apt/sources.list
deb http://mirrors.163.com/ubuntu/ focal main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiverse
deb http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ focal main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ focal-security main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ focal-updates main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ focal-proposed main restricted universe multiverse
deb-src http://mirrors.163.com/ubuntu/ focal-backports main restricted universe multiverse

4、更新

root@DESKTOP-1N42TVH:/home/test2# apt update

5、测试

root@DESKTOP-1N42TVH:/home/test2# apt install r-base-core

 没有问题。

测试R：

没有问题。