在Windows上安装ImageMagick for Ruby on Rails时出错

Question

我正在按照以下文档在Xampp的Rails和Redmine上安装ruby：

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

步骤12需要安装rmagick，我正确地遵循了步骤，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，它可能可以解决我的问题，但是我不知道如何安装。 有什么想法吗？

Answer 1

听起来您正在尝试安装ImageMagick之前先安装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然后安装gem。