[Rd] object not found whilst loading namespace

Max Kuhn mxkuhn at gmail.com
Wed Mar 16 02:48:07 CET 2011

I've been updating a package and, when installing a local devel
version, I get an error "object 'confusionMatrix' not found whilst
loading namespace". Looking around online, it appears that this might
be related to loading a specific RData file, but it doesn't seem to be
the case AFAICT.

I've installed the devel version in the last week without issues and
the confusionMatrix code has been touched in a while.



> sessionInfo()
R version 2.11.1 (2010-05-31)

[1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] caret_4.71     reshape_0.8.3  plyr_1.2.1     lattice_0.18-8

loaded via a namespace (and not attached):
[1] grid_2.11.1

pkg_kuhna03$ R CMD INSTALL caret
* installing to library ‘/Library/Frameworks/R.framework/Resources/library’
* installing *source* package ‘caret’ ...
** libs
*** arch - i386
gcc -arch i386 -std=gnu99
-I/usr/local/include    -fPIC  -g -O2 -c caret.c -o caret.o
gcc -arch i386 -std=gnu99 -dynamiclib -Wl,-headerpad_max_install_names
-undefined dynamic_lookup -single_module -multiply_defined suppress
-L/usr/local/lib -o caret.so caret.o
-F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework
installing to /Library/Frameworks/R.framework/Resources/library/caret/libs/i386
*** arch - x86_64
gcc -arch x86_64 -std=gnu99
-I/usr/local/include    -fPIC  -g -O2 -c caret.c -o caret.o
gcc -arch x86_64 -std=gnu99 -dynamiclib
-Wl,-headerpad_max_install_names -undefined dynamic_lookup
-single_module -multiply_defined suppress -L/usr/local/lib -o caret.so
caret.o -F/Library/Frameworks/R.framework/.. -framework R
-Wl,-framework -Wl,CoreFoundation
installing to /Library/Frameworks/R.framework/Resources/library/caret/libs/x86_64
** R
** data
** inst
** preparing package for lazy loading
Loading required package: plyr

Attaching package: 'reshape'

The following object(s) are masked from 'package:plyr':


** help
*** installing help indices
** building package indices ...
** testing if installed package can be loaded
Error : object 'confusionMatrix' not found whilst loading namespace 'caret'
ERROR: loading failed
* removing ‘/Library/Frameworks/R.framework/Resources/library/caret’
* restoring previous ‘/Library/Frameworks/R.framework/Resources/library/caret’

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