install.packages("Rmpfr")安装报错ERROR: compilation failed for package 'Rmpfr'
解决方案：改为：install.packages("Rmpfr", type="binary")
Error: (converted from warning) package 'shiny' was built under R version 3.6.3
解决方案：https://blog.csdn.net/u012110870/article/details/106328670
简单来说从github上下载安装包.zip,解压后运行：install.packages("D:/Gu_lab/Liver/reference/software/shiny-directory-input-master/", repos = NULL, type = "source")