像许多其他人一样,我在运行bundle install时在Ubuntu上安装rmagick时遇到了麻烦.
我在bundle install命令上遇到这个错误：
Installing rmagick (2.13.1) Gem::Installer::ExtensionBuildError: ERROR: Failed to build gem native extension. /usr/local/rvm/rubies/ruby-1.8.7-p371/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/rvm/gems/ruby-1.8.7-p371/bin:/usr/local/rvm/gems/ruby-1.8.7-p371@global/bin:/usr/local/rvm/rubies/ruby-1.8.7-p371/bin:/usr/local/rvm/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games *** 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-1.8.7-p371/bin/ruby Gem files will remain installed in /home/selfsale/.bundler/tmp/2908/gems/rmagick-2.13.1 for inspection. Results logged to /home/selfsale/.bundler/tmp/2908/gems/rmagick-2.13.1/ext/RMagick/gem_make.out An error occurred while installing rmagick (2.13.1),and Bundler cannot continue. Make sure that `gem install rmagick -v '2.13.1'` succeeds before bundling.
sudo apt-get install libmagick9-dev：
Reading package lists... Done Building dependency tree Reading state information... Done Package libmagick9-dev is not available,but is referred to by another package. This may mean that the package is missing,has been obsoleted,or is only available from another source However the following packages replace it: graphicsmagick-libmagick-dev-compat E: Package 'libmagick9-dev' has no installation candidate
sudo apt-get install graphicsmagick-libmagick-dev-compat：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: graphicsmagick-libmagick-dev-compat : Depends: libgraphicsmagick1-dev but it is not going to be installed Depends: libgraphicsmagick++1-dev but it is not going to be installed E: Unable to correct problems,you have held broken packages.
sudo apt-get install libmagickwand-dev：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libmagickwand-dev : Depends: libmagickcore-dev (= 8:6.6.9.7-5ubuntu3.2) but it is not going to be installed E: Unable to correct problems,you have held broken packages.
sudo apt-get install libmagickcore-dev：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libmagickcore-dev : Depends: libbz2-dev but it is not going to be installed Depends: libfreetype6-dev but it is not going to be installed Depends: libpng-dev Depends: librsvg2-dev but it is not going to be installed Depends: libwmf-dev but it is not going to be installed Depends: libx11-dev but it is not going to be installed Depends: libxext-dev but it is not going to be installed Depends: libxt-dev but it is not going to be installed E: Unable to correct problems,you have held broken packages.
sudo apt-get install libmagick -dev：
Reading package lists... Done Building dependency tree Reading state information... Done Some packages could not be installed. This may mean that you have requested an impossible situation or if you are using the unstable distribution that some required packages have not yet been created or been moved out of Incoming. The following information may help to resolve the situation: The following packages have unmet dependencies: libmagick++-dev : Depends: libmagickcore-dev (= 8:6.6.9.7-5ubuntu3.2) but it is not going to be installed Depends: libmagickwand-dev (= 8:6.6.9.7-5ubuntu3.2) but it is not going to be installed E: Unable to correct problems,you have held broken packages.
似乎任何安装正确软件包的尝试都会出现这个问题.
我刚刚看到一篇关于从源代码安装imagemagick的帖子,所以我打算尝试一下,但如果有人有任何更好的想法,我很乐意听到它们.
谢谢
我找到了解决方案：
sudo apt-get install aptitude
然后火：
sudo aptitude install graphicsmagick-libmagick-dev-compat
有人问：
The following actions will resolve these dependencies: Keep the following packages at their current version 1) graphicsmagick-libmagick-dev-compat [Not Installed] 2) libexif-dev [Not Installed] 3) libgraphicsmagick++1-dev [Not Installed] 4) libgraphicsmagick1-dev [Not Installed]
答案：“n”
Accept this solution? [Y/n/q/?] n
在第二个问题：
The following actions will resolve these dependencies: Downgrade the following packages: 1) libexif12 [0.6.20-2ubuntu0.1 (now) -> 0.6.20-2 (precise)]
答案：“Y”或按ENTER键
Accept this solution? [Y/n/q/?]
等到任务结束;)
