我装的R是3.6.1，安装bioconductor常用包一直出问题。

> install.packages("BiocManager")
WARNING: Rtools is required to build R packages but is not currently installed. Please download and install the appropriate version of Rtools before proceeding:
https://cran.rstudio.com/bin/windows/Rtools/
Installing package into ‘C:/Users/Lenovo/Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)
试开URL’https://mirrors.tuna.tsinghua.edu.cn/CRAN/bin/windows/contrib/3.6/BiocManager_1.30.10.zip'
Content type 'application/zip' length 100430 bytes (98 KB)
downloaded 98 KB
package ‘BiocManager’ successfully unpacked and MD5 sums checked
The downloaded binary packages are in
C:\Users\Lenovo\AppData\Local\Temp\RtmpCikR6V\downloaded_packages
> library(BiocManager)
Bioconductor version '3.8' is out-of-date; the current release version '3.10'
  is available with R version '3.6'; see https://bioconductor.org/install
载入程辑包：‘BiocManager’
The following object is masked from ‘package:devtools’:
    install
Warning message:
程辑包‘BiocManager’是用R版本3.6.2 来建造的 
> BiocManager::install("digest")
错误: Bioconductor version '3.8' requires R version '3.5'; see
  https://bioconductor.org/install