当我尝试安装rmagic时:
gem install rmagic
它给出了错误:
Building native extensions. This could take a while... ERROR: Error installing rmagick: ERROR: Failed to build gem native extension. /home/biske/.rbenv/versions/2.0.0-p247/bin/ruby 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... yes checking for HDRI disabled version of ImageMagick... yes checking for stdint.h... yes checking for sys/types.h... yes checking for wand/MagickWand.h... no Can't install RMagick 2.13.2. Can't find MagickWand.h. *** 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=/home/biske/.rbenv/versions/2.0.0-p247/bin/ruby Gem files will remain installed in /home/biske/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rmagick-2.13.2 for inspection. Results logged to /home/biske/.rbenv/versions/2.0.0-p247/lib/ruby/gems/2.0.0/gems/rmagick-2.13.2/ext/RMagick/gem_make.out
我试图搜索问题,发现我缺少libmagickwand-dev.我尝试安装它:
sudo apt-get install libmagickwand-dev
但它会引发错误:
The following packages have unmet dependencies: libmagickwand-dev : Depends: libmagickcore-dev (= 8:6.7.7.10-5ubuntu2) but it is not going to be installed E: Unable to correct problems,you have held broken packages.
如果我尝试安装它:
sudo apt-get install libmagickcore-dev
它给出了错误:
The following packages have unmet dependencies: libmagickcore-dev : Depends: librsvg2-dev but it is not going to be installed E: Unable to correct problems,you have held broken packages.
如果我尝试安装它:
sudo apt-get install librsvg2-dev
它给出了错误:
The following packages have unmet dependencies: librsvg2-dev : Depends: libglib2.0-dev (>= 2.24.0) but it is not going to be installed Depends: libgdk-pixbuf2.0-dev (>= 2.23.5-2) but it is not going to be installed Depends: libcairo2-dev (>= 1.2.0) but it is not going to be installed E: Unable to correct problems,you have held broken packages.
如果我尝试使用以下命令安装libglib2.0-dev:
sudo apt-get install libglib2.0-dev
它给出了错误:
The following packages have unmet dependencies: libglib2.0-dev : Depends: libglib2.0-0 (= 2.36.0-1ubuntu1) but 2.36.0-1ubuntu2 is to be installed Depends: libglib2.0-bin (= 2.36.0-1ubuntu1) E: Unable to correct problems,you have held broken packages.
如果我安装libglib2.0-0:
sudo apt-get install libglib2.0-0
它给:
libglib2.0-0 is already the newest version. 0 upgraded,0 newly installed,0 to remove and 0 not upgraded.
如果我用以下命令安装libglib2.0-bin:
sudo apt-get install libglib2.0-bin
它给:
Reading package lists... Done Building dependency tree Reading state information... Done libglib2.0-bin is already the newest version. 0 upgraded,0 to remove and 0 not upgraded.
这两个库已经安装但是再次发布:
sudo apt-get install libglib2.0-dev
它给出了同样的错误:
The following packages have unmet dependencies: libglib2.0-dev : Depends: libglib2.0-0 (= 2.36.0-1ubuntu1) but 2.36.0-1ubuntu2 is to be installed Depends: libglib2.0-bin (= 2.36.0-1ubuntu1) E: Unable to correct problems,you have held broken packages.
这可能有什么问题?
我正在使用Ubuntu 13.04,rbenv,ruby 2.0.0,如果这很重要的话.
解决方法
试试这个
首先安装imagemagick
sudo apt-get install imagemagick
然后
sudo apt-get install libmagickwand-dev