[SOLVED] How to solve expss package loading problem

How to solve expss package loading problem

I would like to install the expss package but it keeps returning an error. Looked around for other with similar problems and tried re-installing several packages but nothing seems to work. Does anyone have a suggestion how to fixed the problem?

So far i tried re-installing:

install.packages("stringr")

install.packages("knitr")

install.packages("checkmate")

install.packages("htmlwidgets")

install.packages("htmltools")

install.packages("htmlTable")

install.packages("expss")

But Rstudio keeps returning with and error :

Error: package or namespace load failed for ‘expss’:
 object 'mtfrm' not found whilst loading namespace 'expss'
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/Library/Frameworks/R.framework/Versions/4.1/Resources/library/expss’
Warning in install.packages :
  installation of package ‘expss’ had non-zero exit status

The downloaded source packages are in
    ‘/private/var/folders/cl/5_wnd4b14y7b40zc80n1r3wdkcnbkn/T/RtmpdcLWsn/downloaded_packages’

Solution

According to this issue, the current version of expss won't install in versions of R before 4.2. This has recently been fixed in the development version. You could try:

updating your version of R to version 4.2 (probably the simplest solution if you don't need to keep an older version of R)
installing the development version of expss from GitHub: first install the remotes package, then remotes::install_github("gdemin/expss")
install an older version of expss (remotes::install_version("expss", "0.11.1"))