install.packages("brms")
Installing package into ‘C:/Users/.......’
(as ‘lib’ is unspecified)
  There is a binary version available but the source version is
  later:
     binary source needs_compilation
brms 2.17.0 2.18.0             FALSE
installing the source package ‘brms’
trying URL 'https://cran.rstudio.com/src/contrib/brms_2.18.0.tar.gz'
Content type 'application/x-gzip' length 4486548 bytes (4.3 MB)
downloaded 4.3 MB
* installing *source* package 'brms' ...
** package 'brms' successfully unpacked and MD5 sums checked
** using staged installation
** R
Warning: namespace 'brms' is not available and has been replaced
by .GlobalEnv when processing object 'brmsfit_example1'
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
Warning message:
package 'Rcpp' was built under R version 4.0.5 
Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : 
  there is no package called 'Brobdingnag'
Calls: <Anonymous> ... loadNamespace -> withRestarts -> withOneRestart -> doWithOneRestart
Execution halted
ERROR: lazy loading failed for package 'brms'
* removing 'C:/Users/....'
Warning in install.packages :
  installation of package ‘brms’ had non-zero exit status
The downloaded source packages are in
	‘C:\Users\....\downloaded_packages’
library(brms)