ruby-on-rails - 安装 rmagick (2.16.0) 时发生错误 [我尝试了 Duplicate 中提供的所有选项，但同样的问题仍然存在]

Question

我在 Ubuntu 16.04 ,
在 gemfile 我有 gem "rmagick"当我 bundle它说

An error occurred while installing rmagick (2.16.0), and Bundler cannot
continue.
Make sure that `gem install rmagick -v '2.16.0'` succeeds before bundling.

如上所述，当我尝试时 gem install rmagick -v '2.16.0'它说

Building native extensions.  This could take a while...
ERROR:  Error installing rmagick:
    ERROR: Failed to build gem native extension.

    current directory: /home/faisal/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rmagick-2.16.0/ext/RMagick
/home/faisal/.rbenv/versions/2.3.1/bin/ruby -r ./siteconf20160926-26223-16sn0dg.rb extconf.rb
checking for gcc... yes
checking for Magick-config... no
checking for pkg-config... yes
Package MagickCore was not found in the pkg-config search path.
Perhaps you should add the directory containing `MagickCore.pc'
to the PKG_CONFIG_PATH environment variable
No package 'MagickCore' found
checking for outdated ImageMagick version (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=/home/faisal/.rbenv/versions/2.3.1/bin/$(RUBY_BASE_NAME)

To see why this extension failed to compile, please check the mkmf.log which can be found here:

  /home/faisal/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-linux/2.3.0-static/rmagick-2.16.0/mkmf.log

extconf failed, exit code 1

Gem files will remain installed in /home/faisal/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/gems/rmagick-2.16.0 for inspection.
Results logged to /home/faisal/.rbenv/versions/2.3.1/lib/ruby/gems/2.3.0/extensions/x86_64-linux/2.3.0-static/rmagick-2.16.0/gem_make.out

我尝试了在不同问题中提供的十几种不同方法，但都没有奏效。

Answer 1

在 MacOS 中，您可以这样做:

brew unlink imagemagick
brew install imagemagick@6 && brew link imagemagick@6 --force