[Rd] anyone familiar with this error?

[Whit Armstrong]

[whit at linuxsvr R.packages]$ sudo R CMD INSTALL  portfolio.construction
* Installing to library '/usr/local/lib64/R/library'
* Installing *source* package 'portfolio.construction' ...
** R
** preparing package for lazy loading
Loading required package: fts
Loading required package: quadprog
Loading required package: Rexcelpoi
terminate called after throwing an instance of 'std::logic_error'
  what():  basic_string::_S_construct NULL not valid
/usr/local/lib64/R/bin/INSTALL: line 455: 25001 Done
 ( echo "options(warn=1); invisible(.libPaths(c(\"${lib}\",
.libPaths()))); .getRequiredPackages();
tools:::makeLazyLoading(\"${R_PACKAGE_NAME}\", \"${lib}\")" )
     25002 Aborted                 (core dumped) | R_DEFAULT_PACKAGES=
LC_ALL=C "${R_EXE}" --vanilla --slave
ERROR: lazy loading failed for package 'portfolio.construction'
** Removing '/usr/local/lib64/R/library/portfolio.construction'
** Restoring previous '/usr/local/lib64/R/library/portfolio.construction'
[whit at linuxsvr R.packages]$


I've tried a few things, but can't seem to track down the problem.

it's leaving core files in my package directory.  (not in the .Rcheck
directory, directly in the package dir)

Thanks,
Whit