ruby-on-rails - 无法安装 RMagic gem

Question

我想安装 RMagic gem，我得到“找不到 Magick-config”，所以我安装了

 $ sudo apt-get install libmagickwand-dev

但现在我得到以下输出:

Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

/usr/local/rvm/rubies/ruby-2.1.5/bin/ruby -r ./siteconf20150526-12203-xr9xf7.rb 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... * 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/rvm/rubies/ruby-2.1.5/bin/ruby extconf.rb:154:in ``': No such file or directory - convert (Errno::ENOENT) from extconf.rb:154:in block in <main>' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:918:inblock in checking_for' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:351:in block (2 levels) in postpone' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:321:inopen' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:351:in block in postpone' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:321:inopen' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:347:in postpone' from /usr/local/rvm/rubies/ruby-2.1.5/lib/ruby/2.1.0/mkmf.rb:917:in checking_for' from extconf.rb:151:in `'

extconf failed, exit code 1

Gem files will remain installed in /usr/local/rvm/gems/ruby-2.1.5@rails4/gems/rmagick-2.13.4 for inspection. Results logged to /usr/local/rvm/gems/ruby-2.1.5@rails4/extensions/x86_64-linux/2.1.0/rmagick-2.13.4/gem_make.out

谁能帮我解决一下吗？

Answer 1

看看它失败的地方(这很难解决，因为你的换行符被某处吞没了):

checking for ImageMagick version >= 6.4.9... * extconf.rb failed *

此检查没有得到"is"，这表明您安装的 libmagickwand-dev 软件包没有提供 ImageMagic >= 6.4.9 的版本，这显然是rmagick gem 版本需要 2.13.4。

获取较新的 ImageMagick 或较旧的 rmagick gem。