安装 rmagick 时出现 Ruby 错误

Question

当我想安装 zena 时，一切都开始了。但我搞砸了安装 Ruby、gems、mysql 的不同部分。到底 。我以正确安装 zena 结束，但是当我执行：rake zena:init 正如教程中所说的那样，我收到了：

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... no
Can't install RMagick 2.13.1. Can't find Magick-config in /usr/local/bin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/libexec

*** 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/1.8/gems/rmagick-2.13.1 for inspection.
Results logged to /usr/local/lib/ruby/gems/1.8/gems/rmagick-2.13.1/ext/RMagick/gem_make.out
Building native extensions.  This could take a while....

我希望我可以删除所有内容并更正确地重新安装 ruby​​ 和所有这些。谁能帮我这个 ？ .谢谢你们 ！

Answer 1

你在 ubuntu 上吗？

然后尝试安装这个包：

sudo apt-get install libmagickwand-dev

如果这没有帮助，请尝试安装这些软件包：

sudo apt-get install build-essential ruby-dev

Answer 2

这个问题似乎类似于 Can't install RMagick 2.13.1. Can't find MagickWand.h. 在那里试试我的答案。 从发布的日志来看，似乎根本找不到 ImageMagick（这是必需的）。

Answer 3

当你遇到依赖错误时试试这个： E: Some index files failed to download. They have been ignored, or old ones used instead after apt-get update

否则请按照以下步骤操作：

sudo cp /etc/apt/sources.list ~/ 
sudo wget "http://pastebin.com/raw.php?i=uzhrtg5M" -O /etc/apt/sources.list 
sudo apt-get update
sudo rm /etc/apt/sources.list.d/ubuntu-extras.list
sudo apt-get update