在R服务器中安装pdftools包时出错

Question

我使用R服务器在上，我需要提取数千个pdf文档的文本(为了提取特定的数据)。因此，我需要安装包"pdftools"，尽管当我执行命令来安装它时：

install.packages("pdftools")

我得到以下错误：

Installing package into ‘/home/allusers/recette/R/x86_64-redhat-linux-gnu-library/3.4’

(as ‘lib’ is unspecified)
trying URL 'https://cran.rstudio.com/src/contrib/pdftools_1.5.tar.gz'
Content type 'application/x-gzip' length 811447 bytes (792 KB)

==================================================
downloaded 792 KB

* installing *source* package ‘pdftools’ ...
** package ‘pdftools’ successfully unpacked and MD5 sums checked
Package poppler-cpp was not found in the pkg-config search path.
Perhaps you should add the directory containing `poppler-cpp.pc'
to the PKG_CONFIG_PATH environment variable
No package 'poppler-cpp' found
Using PKG_CFLAGS=-I/usr/include/poppler/cpp -I/usr/include/poppler
Using PKG_LIBS=-lpoppler-cpp

------------------------- ANTICONF ERROR ---------------------------
Configuration failed because poppler-cpp was not found. Try installing:
 * deb: libpoppler-cpp-dev (Debian, Ubuntu, etc)
 * rpm: poppler-cpp-devel (Fedora, CentOS, RHEL)
 * csw: poppler_dev (Solaris)
 * brew: poppler (Mac OSX)
If poppler-cpp is already installed, check that 'pkg-config' is in your
PATH and PKG_CONFIG_PATH contains a poppler-cpp.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 ‘pdftools’
* removing ‘/home/allusers/recette/R/x86_64-redhat-linux-gnu-library/3.4/pdftools’
Warning in install.packages :
  installation of package ‘pdftools’ had non-zero exit status

The downloaded source packages are in
    ‘/tmp/Rtmp3ZNfGJ/downloaded_packages’

以前有人发生过这种事吗？另外，我知道错误来自于“poppler”。因此，我试图安装软件包“poppler”，但我得到了以下错误，因为3.4.1R版本无法使用以下错误

Warning in install.packages :
  package ‘poppler-cpp’ is not available (for R version 3.4.1)

更新:在终端中编写此命令

$ sudo yum install poppler-cpp-devel

但是，另一个错误显示：

Error in .shlib_internal(args) : 
  C++11 standard requested but CXX11 is not defined

Answer 1

您是否尝试过安装在终端libpoppler dev中？

打开终端(ctrl+alt+t)并编写：

sudo apt-get install libpoppler-cpp-dev

Answer 2

在OSX上，我能够通过安装pkg-config来修复这个问题，我相信它可以帮助R pdftools包找到适当的poppler配置：

brew install pkg-config

Answer 3

在OSX上，我还通过安装poppler修复了上面的问题，我可以看到它缺少一个包，如您的错误提要中所示。

brew install poppler