Enter the body of text here

Code should be placed in three backticks as shown below

BiocManager::install("org.Hs.eg.db")
BiocManager::install("clusterProfiler")

library(org.Hs.eg.db) 
# include your problematic code here with any corresponding output 
# please also include the results of running the following in an R session 

sessionInfo( )

Error: package or namespace load failed for ‘org.Hs.eg.db’:
 loadNamespace()里算'org.Hs.eg.db'时.onLoad失败了，详细内容：
  调用: l$contains
  错误: $ operator is invalid for atomic vectors

It’s Rstudio. https://github.com/rstudio/rstudio/issues/9219

You can try the fix proposed by Kevin Ushey in that bug report, or run R from the command line, or if you require an IDE, you could switch to emacs/ESS. IMO the latter is a far superior option, so you might take a look. Vincent Goulet has an installer that makes it as easy to install as RStudio.

you can try following. It works for me.

options(connectionObserver = NULL)

library(org.Hs.eg.db)