BioManger安装见：https://www.jianshu.com/p/d46580eb52c6

安装R包

Rstudio URL ‘...‘: status was ‘Couldn‘t resolve host name‘

错误: Bioconductor version cannot be validated; no internet connection?

source 和Bioconductor R包安装报错 Couldn't resolve host name && 错误: Bioconductor version cannot be val...

第一次报错： image.png

source("http://bioconductor.org/biocLite.R")
Error in file(filename, "r", encoding = encoding) : 
  cannot open the connection to 'http://bioconductor.org/biocLite.R'
此外: Warning message:
In file(filename, "r", encoding = encoding) :
  URL 'http://bioconductor.org/biocLite.R': status was 'Couldn't resolve host name'

第二次报错：

BiocManager::install("phyloseq")
错误: Bioconductor version cannot be validated; no internet connection?

经过多次尝试，问题可能出现在ipv6上面。
解决方式：
ubuntu 18系统下

sudo vi  /etc/resolv.conf

插入两行

nameserver 119.29.29.29
nameserver 8.8.8.8