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### Running command:
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###   /Library/Frameworks/R.framework/Resources/bin/R CMD build --keep-empty-dirs --no-resave-data twilight
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* checking for file ‘twilight/DESCRIPTION’ ... OK
* preparing ‘twilight’:
* checking DESCRIPTION meta-information ... OK
* cleaning src
* installing the package to build vignettes
      -----------------------------------
* installing *source* package ‘twilight’ ...
** this is package ‘twilight’ version ‘1.83.7’
** using staged installation
** libs
using C compiler: ‘Apple clang version 14.0.0 (clang-1400.0.29.202)’
using SDK: ‘MacOSX11.3.sdk’
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c confidence.line.c -o confidence.line.o
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c correlation.c -o correlation.o
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c kstest.c -o kstest.o
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c sep.c -o sep.o
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c twosample.perm.c -o twosample.perm.o
clang -arch x86_64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG   -I/opt/R/x86_64/include    -fPIC  -falign-functions=64 -Wall -g -O2  -c twosample.single.c -o twosample.single.o
clang -arch x86_64 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -L/Library/Frameworks/R.framework/Resources/lib -L/opt/R/x86_64/lib -o twilight.so confidence.line.o correlation.o kstest.o sep.o twosample.perm.o twosample.single.o -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
installing to /private/tmp/Rtmpk05TbA/Rinst781c19176d0b/00LOCK-twilight/00new/twilight/libs
** R
** data
** inst
** byte-compile and prepare package for lazy loading
Error: object ‘predict.bs’ is not exported by 'namespace:splines'
Execution halted
ERROR: lazy loading failed for package ‘twilight’
* removing ‘/private/tmp/Rtmpk05TbA/Rinst781c19176d0b/twilight’
      -----------------------------------
ERROR: package installation failed