我正在尝试使用devtools从github下载R包，但遇到了一些问题。从我收到的错误消息中，问题似乎与RcppArmadillo有关，因为“ dgemv_”似乎是RcppArmadillo的一部分。卸载或重新安装RcppArmadillo不会停止错误。
由于收到此错误消息，因此我卸载了R，RStudio和Rtools。我重新安装了R，安装了一些软件包，安装了Rtools，并且错误仍然存在。
在R中，我的会话信息为：
R version 3.5.1 (2018-07-02)
Platform: x86_64-w64-mingw32/x64 (64-bit)
Running under: Windows 7 x64 (build 7601) Service Pack 1
Matrix products: default
locale:
[1] LC_COLLATE=English_United States.1252 LC_CTYPE=English_United States.1252 LC_MONETARY=English_United States.1252 LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] RcppArmadillo_0.9.100.5.0
loaded via a namespace (and not attached):
[1] Rcpp_0.12.19 magrittr_1.5 usethis_1.4.0 devtools_2.0.0 pkgload_1.0.1 R6_2.3.0 rlang_0.3.0 tools_3.5.1
[9] pkgbuild_1.0.2 sessioninfo_1.1.0 cli_1.0.1 withr_2.1.2 remotes_2.0.1 assertthat_0.2.0 digest_0.6.18 rprojroot_1.3-2
[17] crayon_1.3.4 processx_3.2.0 callr_3.0.0 base64enc_0.1-3 fs_1.2.6 ps_1.2.0 curl_3.2 memoise_1.1.0
[25] glue_1.3.0 compiler_3.5.1 desc_1.2.0 backports_1.1.2 prettyunits_1.0.2
当我跑步时：
devtools::install_github("irinagain/mixedCCA")
我收到错误消息：
Downloading GitHub repo irinagain/mixedCCA@master
√ checking for file 'C:\Users\ben\AppData\Local\Temp\RtmpSQ7zwU\remotes2a5c2e561667\irinagain-mixedCCA-af59bb9/DESCRIPTION' (406ms)
- preparing 'mixedCCA':
√ checking DESCRIPTION meta-information
- cleaning src
- checking for LF line-endings in source and make files and shell scripts
- checking for empty or unneeded directories
- building 'mixedCCA_0.1.0.tar.gz'
* installing *source* package 'mixedCCA' ...
** libs
*** arch - i386
c:/Rtools/mingw_32/bin/g++ -I"C:/PROGRA~1/R/R-35~1.1/include" -DNDEBUG -I"C:/Program Files/R/R-3.5.1/library/Rcpp/include" -I"C:/Program Files/R/R-3.5.1/library/RcppArmadillo/include" -O2 -Wall -mtune=generic -c RcppExports.cpp -o RcppExports.o
c:/Rtools/mingw_32/bin/g++ -I"C:/PROGRA~1/R/R-35~1.1/include" -DNDEBUG -I"C:/Program Files/R/R-3.5.1/library/Rcpp/include" -I"C:/Program Files/R/R-3.5.1/library/RcppArmadillo/include" -O2 -Wall -mtune=generic -c find_w12.cpp -o find_w12.o
c:/Rtools/mingw_32/bin/g++ -shared -s -static-libgcc -o mixedCCA.dll tmp.def RcppExports.o find_w12.o -LC:/PROGRA~1/R/R-35~1.1/bin/i386 -lR
find_w12.o:find_w12.cpp:(.text$_ZN4arma27glue_times_redirect2_helperILb0EE5applyINS_3MatIdEENS_3ColIdEEEEvRNS3_INT_9elem_typeEEERKNS_4GlueIS7_T0_NS_10glue_timesEEE[__ZN4arma27glue_times_redirect2_helperILb0EE5applyINS_3MatIdEENS_3ColIdEEEEvRNS3_INT_9elem_typeEEERKNS_4GlueIS7_T0_NS_10glue_timesEEE]+0x361): undefined reference to `dgemv_'
find_w12.o:find_w12.cpp:(.text$_ZN4arma27glue_times_redirect2_helperILb0EE5applyINS_3MatIdEENS_3ColIdEEEEvRNS3_INT_9elem_typeEEERKNS_4GlueIS7_T0_NS_10glue_timesEEE[__ZN4arma27glue_times_redirect2_helperILb0EE5applyINS_3MatIdEENS_3ColIdEEEEvRNS3_INT_9elem_typeEEERKNS_4GlueIS7_T0_NS_10glue_timesEEE]+0x622): undefined reference to `dgemv_'
find_w12.o:find_w12.cpp:(.text$_ZN4arma27glue_times_redirect2_helperILb0EE5applyINS_3MatIdEENS_3ColIdEEEEvRNS3_INT_9elem_typeEEERKNS_4GlueIS7_T0_NS_10glue_timesEEE[__ZN4arma27glue_times_redirect2_helperILb0EE5applyINS_3MatIdEENS_3ColIdEEEEvRNS3_INT_9elem_typeEEERKNS_4GlueIS7_T0_NS_10glue_timesEEE]+0xa6b): undefined reference to `dgemv_'
find_w12.o:find_w12.cpp:(.text$_ZN4arma5ProxyINS_4GlueINS_3MatIdEENS_3ColIdEENS_10glue_timesEEEEC1ERKS7_[__ZN4arma5ProxyINS_4GlueINS_3MatIdEENS_3ColIdEENS_10glue_timesEEEEC1ERKS7_]+0x18c): undefined reference to `dgemv_'
find_w12.o:find_w12.cpp:(.text$_ZN4arma5ProxyINS_4GlueINS_3MatIdEENS_3ColIdEENS_10glue_timesEEEEC1ERKS7_[__ZN4arma5ProxyINS_4GlueINS_3MatIdEENS_3ColIdEENS_10glue_timesEEEEC1ERKS7_]+0x43a): undefined reference to `dgemv_'
find_w12.o:find_w12.cpp:(.text$_ZN4arma5ProxyINS_4GlueINS_3MatIdEENS_3ColIdEENS_10glue_timesEEEEC1ERKS7_[__ZN4arma5ProxyINS_4GlueINS_3MatIdEENS_3ColIdEENS_10glue_timesEEEEC1ERKS7_]+0x987): more undefined references to `dgemv_' follow
collect2.exe: error: ld returned 1 exit status
no DLL was created
ERROR: compilation failed for package 'mixedCCA'
* removing 'C:/Program Files/R/R-3.5.1/library/mixedCCA'
In R CMD INSTALL
Error in i.p(...) :
(converted from warning) installation of package ‘C:/Users/ben/AppData/Local/Temp/RtmpSQ7zwU/file2a5c4fb94283/mixedCCA_0.1.0.tar.gz’ had non-zero exit status
答案 0 :(得分：3)
问题在于链接期间未提及BLAS和LAPACK库。为此，软件包作者应使用类似
的方法PKG_LIBS = $(LAPACK_LIBS) $(BLAS_LIBS) $(FLIBS)
src/Makevars(.win)中。当使用RcppArmadillo::RcppArmadillo.package.skeleton()来设置程序包时，这会自动发生。但是，mixedCCA根本没有Makevars文件：https://github.com/irinagain/mixedCCA/tree/master/src。您应该在GH上打开一个问题才能解决此问题。
答案 1 :(得分：2)
不是Rcpp问题，也不是RcppArmadillo问题，因为它显示了
other attached packages:
[1] RcppArmadillo_0.9.100.5.0
RcppArmadillo仅被加载。
我建议您在mixedCCA回购中打开票证。
答案 2 :(得分：0)
我使用以下方法解决了这个问题：