在 Windows 上为 Ruby on Rails 安装 ImageMagick 时出错

Question

我正在使用 xampp 安装 ruby​​ on rails 和 redmine 以下文档：

http://nlb-creations.com/2013/06/26/installing-ruby-on-rails-and-redmine-with-xampp-on-windows-7/

第 12 步需要安装 rmagick，我按照正确的步骤操作，直到达到 12-d：

在 cmd 窗口中，运行以下命令：

gem install rmagick --platform=ruby -- --with-opt-lib=c:/ImageMagick/lib --with-opt-include=c:/ImageMagick/include

我收到以下错误：

    C:\xampp\htdocs\dev-ruby\redmine>gem install rmagick --platform=ruby -- --with-o
    pt-lib=c:/ImageMagick/lib --with-opt-include=c:/ImageMagick/include

Temporarily enhancing PATH to include DevKit...
Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
        ERROR: Failed to build gem native extension.

        C:/RailsInstaller/Ruby1.9.3/bin/ruby.exe extconf.rb --with-opt-lib=c:/Im
ageMagick/lib --with-opt-include=c:/ImageMagick/include
checking for Ruby version >= 1.8.5... yes
Invalid drive specification.
Unable to get ImageMagick version
*** 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=${opt-dir}/include
        --with-opt-lib=${opt-dir}/lib
        --with-make-prog
        --without-make-prog
        --srcdir=.
        --curdir
        --ruby=C:/RailsInstaller/Ruby1.9.3/bin/ruby


Gem files will remain installed in C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9
.1/gems/rmagick-2.13.3 for inspection.
Results logged to C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/gems/rmagick-2
.13.3/ext/RMagick/gem_make.out

我下载了 ImageMagick-devel-6.8.9.9.aarch64.rpm cz 它可能会解决我的问题，但我不知道如何安装它。请问有什么想法吗？

Answer 1

听起来您正在尝试在安装 ImageMagick 之前安装 RMagick gem：

RPM 适用于某些 Linux 发行版。

尝试安装 http://www.imagemagick.org/script/binary-releases.php#windows 然后 gem。