在Windows上安装适用于Ruby on Rails的ImageMagick时出错

我按照此文档在rails上安装ruby并使用xampp redmine：

Installing Ruby on Rails and Redmine with XAMPP on Windows 7

第12步需要安装rmagick，我正确地按照步骤直到我达到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它可能解决了我的问题，但我不知道如何安装它。 有什么想法吗？

Answer 1

听起来你在安装ImageMagick之前尝试安装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。