R包安装时，出现的错误解决合集

1. library(devtools)

#error:Error in get(genname, envir = envir) : object 'testthat_print' not found
#解决
options("repos" = c(CRAN="https://mirrors.tuna.tsinghua.edu.cn/CRAN/"))
install.packages("testthat")

2.install.packages()、BiocManager::install()、devtools::install_github()均安装失败

conda install r-devtools
conda install r-hdf5r
conda install r-sf