Installation Error Macosx about dplyr HOT 1 CLOSED

> load_all()
Loading dplyr
Re-compiling dplyr
'/Library/Frameworks/R.framework/Resources/bin/R' --vanilla CMD INSTALL  \
  '/Users/thomaskern/Documents/programming/dplyr'  \
  --library='/var/folders/tx/5yp3lm_j6_l076sm5htmvxxm0000gn/T//RtmpUe3kBe' --no-R --no-data --no-help --no-demo  \
  --no-inst --no-docs --no-exec --no-multiarch --no-test-load --preclean 

* installing *source* package 'dplyr' ...
** libs
llvm-g++-4.2 -arch x86_64 -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I"/Library/Frameworks/R.framework/Versions/3.0/Resources/library/Rcpp/include"  -UNDEBUG -Wall -pedantic -g -O0 -fPIC  -mtune=core2 -g -O2  -c RcppExports.cpp -o RcppExports.o
llvm-g++-4.2 -arch x86_64 -I/Library/Frameworks/R.framework/Resources/include -DNDEBUG  -I/usr/local/include -I"/Library/Frameworks/R.framework/Versions/3.0/Resources/library/Rcpp/include"  -UNDEBUG -Wall -pedantic -g -O0 -fPIC  -mtune=core2 -g -O2  -c split-indices.cpp -o split-indices.o
llvm-g++-4.2 -arch x86_64 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/lib -L/usr/local/lib -o dplyr.so RcppExports.o split-indices.o /Library/Frameworks/R.framework/Versions/3.0/Resources/library/Rcpp/lib/libRcpp.a -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
installing to /private/var/folders/tx/5yp3lm_j6_l076sm5htmvxxm0000gn/T/RtmpUe3kBe/dplyr/libs
* DONE (dplyr)
Loading required namespace: assertthat
The dplyr API is currently rapidly evolving. I recommend that you don't rely on this for production, but feel free to explore. If you encounter a clear bug, please file a minimal reproducible example at https://github.com/hadley/dplyr/issues.For questions and other discussion, please use https://groups.google.com/group/manipulatr