* installing *source* package 'plyr' ...
** this is package 'plyr' version '1.8.9'
** package 'plyr' successfully unpacked and MD5 sums checked
ERROR: cannot remove earlier installation, is it in use?
* removing 'd:/Rcompile/CRANpkg/lib/4.6/plyr'
* restoring previous 'd:/Rcompile/CRANpkg/lib/4.6/plyr'
Warning in file.copy(lp, dirname(pkgdir), recursive = TRUE, copy.date = TRUE) :
  problem copying d:\Rcompile\CRANpkg\lib\4.6\00LOCK-plyr\plyr\libs\x64\plyr.dll to d:\Rcompile\CRANpkg\lib\4.6\plyr\libs\x64\plyr.dll: Permission denied