ubuntu中安装rmr2包总是提示fatal error: Rcpp.h: 没有那个文件或目录；错误如下：
install.packages('/home/hadoop/rmr2_3.3.1.tar.gz',repo=NULL,type="source",lib='/usr/lib/R/library')

* installing *source* package ‘rmr2’ ...
** libs
g++  -I/usr/share/R/include -DNDEBUG     `/usr/lib/R/bin/Rscript -e "Rcpp:::CxxFlags()"` -fpic  -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -g  -c extras.cpp -o extras.o
In file included from extras.cpp:15:0:
extras.h:18:18: fatal error: Rcpp.h: 没有那个文件或目录
compilation terminated.
/usr/lib/R/etc/Makeconf:168: recipe for target 'extras.o' failed
make: *** [extras.o] Error 1
ERROR: compilation failed for package ‘rmr2’
* removing ‘/usr/lib/R/library/rmr2’
Warning message:
In install.packages("/home/hadoop/rmr2_3.3.1.tar.gz", repo = NULL,  :
  安装程序包‘/home/hadoop/rmr2_3.3.1.tar.gz’时退出狀態的值不是0