Question

我在尝试在centos上安装“rmagick”gem时遇到了问题。以下是我的输出。任何人都可以帮我确认我缺少哪些套餐？我已经安装了所有提到的另一个堆栈溢出线程：RMagick install error

Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

        /usr/local/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
checking for stdint.h... yes
checking for sys/types.h... yes
checking for wand/MagickWand.h... no

Can't install RMagick 2.13.2. Can't find MagickWand.h.
*** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/usr/local/bin/ruby


Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2/ext/RMagick/gem_make.out

按照以下建议，我现在得到这个输出：

Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

        /usr/local/bin/ruby extconf.rb
checking for Ruby version >= 1.8.5... yes
checking for gcc... yes
checking for Magick-config... yes
checking for ImageMagick version >= 6.4.9... yes
checking for HDRI disabled version of ImageMagick... yes
checking for stdint.h... *** extconf.rb failed ***
Could not create Makefile due to some reason, probably lack of
necessary libraries and/or headers.  Check the mkmf.log file for more
details.  You may need configuration options.

Provided configuration options:
    --with-opt-dir
    --without-opt-dir
    --with-opt-include
    --without-opt-include=${opt-dir}/include
    --with-opt-lib
    --without-opt-lib=${opt-dir}/lib
    --with-make-prog
    --without-make-prog
    --srcdir=.
    --curdir
    --ruby=/usr/local/bin/ruby
/usr/local/lib/ruby/1.9.1/mkmf.rb:381:in `try_do': The compiler failed to generate an executable file. (RuntimeError)
You have to install development tools first.
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:506:in `try_cpp'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:931:in `block in have_header'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:790:in `block in checking_for'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:284:in `block (2 levels) in postpone'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:284:in `block in postpone'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:254:in `open'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:280:in `postpone'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:789:in `checking_for'
    from /usr/local/lib/ruby/1.9.1/mkmf.rb:930:in `have_header'
    from extconf.rb:194:in `<main>'


Gem files will remain installed in /usr/local/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.9.1/gems/rmagick-2.13.2/ext/RMagick/gem_make.out

mkmf.log的输出：

checking for HDRI disabled version of ImageMagick... -------------------- yes

--------------------

"gcc -o conftest -I/usr/local/include/ruby-1.9.1/x86_64-linux -I/usr/local/include/ruby-1.9.1/ruby/backward -I/usr/local/include/ruby-1.9.1 -I.  -fopenmp -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/usr/include/ImageMagick-6    -fopenmp -DMAGICKCORE_HDRI_ENABLE=0 -DMAGICKCORE_QUANTUM_DEPTH=16 -I/usr/include/ImageMagick-6   conftest.c  -L. -L/usr/local/lib -Wl,-R/usr/local/lib  -L/usr/lib -lMagickCore-6.Q16      -L/usr/lib -lMagickCore-6.Q16    -Wl,-R -Wl,/usr/local/lib -L/usr/local/lib -lruby-static  -lpthread -lrt -ldl -lcrypt -lm   -lc"
/usr/bin/ld: skipping incompatible /usr/lib/libMagickCore-6.Q16.so when searching for -lMagickCore-6.Q16
/usr/bin/ld: skipping incompatible /usr/lib/libMagickCore-6.Q16.so when searching for -lMagickCore-6.Q16
/usr/bin/ld: skipping incompatible /usr/lib/libMagickCore-6.Q16.so when searching for -lMagickCore-6.Q16
/usr/bin/ld: cannot find -lMagickCore-6.Q16
collect2: ld returned 1 exit status
checked program was:
/* begin */
1: #include "ruby.h"

gem_make.out的输出与上面的终端输出相同。

Answer 1

尝试安装

  sudo apt-get install libmagickwand-dev imagemagick

Answer 2

这ImageMagick 7 with RMagick 2.16 on MacOS Sierra Can't find MagickWand.h适用于Rmagick 2.16。

brew install imagemagick@6
brew link --force imagemagick@6
gem install rmagick

Answer 3

错误消息显示：

Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found

似乎你根本没有丢包，你只需要告诉pkg-config在哪里找到MagickCore.pc文件来构建扩展。如果您使用ImageMagick-devel安装了包yum，则该文件应位于目录/usr/lib/pkgconfig或/usr/lib64/pkgconfig内（具体取决于您的体系结构）。请检查此命令（从现在开始，我假设您使用的是amd64计算机，如果不是lib64替换lib的话）：

$ find /usr/lib64/pkgconfig -name MagickCore.pc

如果文件在那里，您只需使用以下命令安装rmagick：

$ PKG_CONFIG_PATH='/usr/lib64/pkgconfig' gem install rmagick

Answer 4

对于使用Brew的Mac，只需..

brew install imagemagick

然后gem install imagemagick将顺利运作。

Answer 5

问题是，正如错误所说，

在pkg-config搜索路径中找不到包MagickCore

在那里也提出了解决方案：

将包含<label>的目录添加到MagickCore.pc环境变量

所以，

查找 MagickCore.pc 位置：
```
PKG_CONFIG_PATH
```
如果找不到，可能是您的系统上没有安装ImageMagick - 然后安装它（Google如何操作，因为它取决于操作系统）
将它保存到ENV var中（确保放置步骤1中找到的路径）：
```
sudo find / -name MagickCore.pc
```
重新安装RMagick

Answer 6

看起来你没有丢失任何包裹。错误消息很重要：

也许您应该添加包含`MagickCore.pc'的目录到PKG_CONFIG_PATH环境变量

this superuser duplicate上的几个答案提供了很好的建议。

Answer 7

在debian（不稳定）上，解决此错误所需的正确包是libmagickcore-6.q16-dev，imagemagick和libmagickwand-6-headers

我使用apt-file search MagickCore.pc和apt-file search MagickWand.h

找到了它们

Answer 8

对于遇到此问题的Windows用户，他们100％地安装了devkit：

安装时，将提示您

仅选择1是不够的。只需按Enter键（1和3），即可正确安装devkit。

“rmagick”宝石安装问题

8 个答案: