各位大神，我租用的一个服务器，使用ananconda，在安装GEOquery包时出错，求大神支招（曾经安装好并使用过了的，但是重启后就失效了。）
source("http://bioconductor.org/biocLite.R")
Bioconductor version 3.6 (BiocInstaller 1.28.0), ?biocLite for help
A new version of Bioconductor is available after installing the most recent version of R;
see http://bioconductor.org/install
biocLite('GEOquery')
BioC_mirror: https://bioconductor.org
Using Bioconductor 3.6 (BiocInstaller 1.28.0), R 3.4.1 (2017-06-30).
Installing package(s) ‘GEOquery’
also installing the dependency ‘xml2’
trying URL 'https://cran.rstudio.com/src/contrib/xml2_1.2.0.tar.gz'
Content type 'application/x-gzip' length 251614 bytes (245 KB)
downloaded 245 KB
trying URL 'https://bioconductor.org/packages/3.6/bioc/src/contrib/GEOquery_2.46.15.tar.gz'
Content type 'application/x-gzip' length 13717934 bytes (13.1 MB)
downloaded 13.1 MB
- installing source package ‘xml2’ ...
** package ‘xml2’ successfully unpacked and MD5 sums checked
Package libxml-2.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing
libxml-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'libxml-2.0' found Package libxml-2.0 was not found in the pkg-config search path. Perhaps you should add the directory containinglibxml-2.0.pc' to the PKG_CONFIG_PATH environment variable No package 'libxml-2.0' found Using PKG_CFLAGS= Using PKG_LIBS=-lxml2 ------------------------- ANTICONF ERROR --------------------------- Configuration failed because libxml-2.0 was not found. Try installing:- deb: libxml2-dev (Debian, Ubuntu, etc)
- rpm: libxml2-devel (Fedora, CentOS, RHEL)
- csw: libxml2_dev (Solaris) If libxml-2.0 is already installed, check that 'pkg-config' is in your PATH and PKG_CONFIG_PATH contains a libxml-2.0.pc file. If pkg-config is unavailable you can set INCLUDE_DIR and LIB_DIR manually via: R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...' -------------------------------------------------------------------- ERROR: configuration failed for package ‘xml2’
- removing ‘/home/u1366/R/x86_64-pc-linux-gnu-library/3.4/xml2’ ERROR: dependency ‘xml2’ is not available for package ‘GEOquery’
- removing ‘/home/u1366/R/x86_64-pc-linux-gnu-library/3.4/GEOquery’
