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我想在R中安裝devtools包，並且需要安裝其依賴xml2，但我收到以下錯誤消息。在小牛上安裝xml2包時出錯
> install.packages("xml2")
Installing package into ‘/Users/xlong3/Library/R/3.2/library’
(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/src/contrib/xml2_0.1.2.tar.gz'
Content type 'application/x-gzip' length 74808 bytes (73 KB)
==================================================
downloaded 73 KB
* installing *source* package ‘xml2’ ...
** package ‘xml2’ successfully unpacked and MD5 sums checked
Found pkg-config cflags and libs!
Using PKG_CFLAGS=-I/Users/xlong3/anaconda/include/libxml2
Using PKG_LIBS=-L/Users/xlong3/anaconda/lib -lxml2 -lz -liconv -lm
** libs
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c RcppExports.cpp -o RcppExports.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c connection.cpp -o connection.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml2_doc.cpp -o xml2_doc.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml2_init.cpp -o xml2_init.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml2_namespace.cpp -o xml2_namespace.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml2_node.cpp -o xml2_node.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml2_url.cpp -o xml2_url.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml2_xpath.cpp -o xml2_xpath.o
clang++ -I/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/include -DNDEBUG -I/Users/xlong3/anaconda/include/libxml2 -I/usr/local/opt/gettext/include -I/usr/local/opt/readline/include -I/usr/local/opt/openssl/include -I"/Users/xlong3/Library/R/3.2/library/Rcpp/include" -I"/usr/local/lib/R/3.2/site-library/BH/include" -fPIC -g -O2 -c xml_push.cpp -o xml_push.o
clang++ -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/usr/local/Cellar/r/3.2.2_1/R.framework/Resources/lib -L/usr/local/opt/gettext/lib -L/usr/local/opt/readline/lib -L/usr/local/opt/openssl/lib -o xml2.so RcppExports.o connection.o xml2_doc.o xml2_init.o xml2_namespace.o xml2_node.o xml2_url.o xml2_xpath.o xml_push.o -L/Users/xlong3/anaconda/lib -lxml2 -lz -liconv -lm -F/usr/local/Cellar/r/3.2.2_1/R.framework/.. -framework R -lintl -Wl,-framework -Wl,CoreFoundation
installing to /Users/xlong3/Library/R/3.2/library/xml2/libs
** R
** inst
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
Error in dyn.load(file, DLLpath = DLLpath, ...) :
unable to load shared object '/Users/xlong3/Library/R/3.2/library/xml2/libs/xml2.so':
dlopen(/Users/xlong3/Library/R/3.2/library/xml2/libs/xml2.so, 6): Library not loaded: libxml2.2.dylib
Referenced from: /Users/xlong3/Library/R/3.2/library/xml2/libs/xml2.so
Reason: image not found
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/Users/xlong3/Library/R/3.2/library/xml2’
The downloaded source packages are in
‘/private/tmp/RtmpJc4WKq/downloaded_packages’
Warning message:
In install.packages("xml2") :
installation of package ‘xml2’ had non-zero exit status
>
> version
_
platform x86_64-apple-darwin13.4.0
arch x86_64
os darwin13.4.0
system x86_64, darwin13.4.0
version.string R version 3.2.2 (2015-08-14)
nickname Fire Safety
雖然'configure'發現'libxml2'其他東西是錯誤的。這可能是一個'PATH'問題，但你有一個有趣的設置。既然你使用R的自制軟件爲什麼你不使用自制軟件'libxml2'？我會從Homebrew安裝'libxml2'，從'PATH'中移除Anaconda，然後重新嘗試構建。 – hrbrmstr
是的，我做了家釀libxml2：brew安裝libxml2 警告：libxml2-2.9.2已經安裝，它不工作。 –
可能是這種情況，但它在'/ Users/xlong3/anaconda/include/libxml2'中找到它，所以你的設置非常混亂。 – hrbrmstr