* using log directory 'd:/Rcompile/CRANpkg/local/3.4/MXM.Rcheck'
* using R version 3.4.4 (2018-03-15)
* using platform: x86_64-w64-mingw32 (64-bit)
* using session charset: ISO8859-1
* checking for file 'MXM/DESCRIPTION' ... OK
* checking extension type ... Package
* this is package 'MXM' version '1.3.9'
* checking package namespace information ... OK
* checking package dependencies ... OK
* checking if this is a source package ... OK
* checking if there is a namespace ... OK
* checking for hidden files and directories ... OK
* checking for portable file names ... OK
* checking whether package 'MXM' can be installed ... ERROR
Installation failed.
See 'd:/Rcompile/CRANpkg/local/3.4/MXM.Rcheck/00install.out' for details.
* DONE
The installation logfile:
* installing *source* package 'MXM' ...
** package 'MXM' successfully unpacked and MD5 sums checked
** R
** inst
** preparing package for lazy loading
Error : object 'which.is' is not exported by 'namespace:Rfast'
ERROR: lazy loading failed for package 'MXM'
* removing 'd:/Rcompile/CRANpkg/lib/3.4/MXM'
* restoring previous 'd:/Rcompile/CRANpkg/lib/3.4/MXM'
In R CMD INSTALL