我碰巧有一个有点老的 rails 项目,它是 rails 3.2 和 ruby 2.2.4。因此,安装一些 gem 会失败,尤其是“rmagick -v '2.13.2'”。
$ gem install rmagick -v '2.13.2'
Building native extensions. This could take a while...
ERROR: Error installing rmagick:
ERROR: Failed to build gem native extension.
/home/user123/.rubies/ruby-2.2.4/bin/ruby -r ./siteconf20160826-3014-1j0i394.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... yes
checking for HDRI disabled version of ImageMagick... no
Can't install RMagick 2.13.2.
RMagick does not work when ImageMagick is configured for High Dynamic Range Images.
Don't use the --enable-hdri option when configuring ImageMagick.
*** 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/user123/.rubies/ruby-2.2.4/bin/$(RUBY_BASE_NAME)
extconf failed, exit code 1
Gem files will remain installed in /home/user123/.gem/ruby/2.2.4/gems/rmagick-2.13.2 for inspection.
Results logged to /home/user123/.gem/ruby/2.2.4/extensions/x86_64-linux/2.2.0-static/rmagick-2.13.2/gem_make.out
我已经尝试卸载库“ImageMagick”并安装一个没有 hdri 的库,但即使这样也失败了,因为还有其他依赖于“ImageMagick”和 hdri 的库,因此我无法重新安装它。 通常,仅为单个 Rails 项目重新安装库听起来不是正确的做法。
那你会推荐我什么? 我在 Arch Linux 上并安装了 2 个 ruby :
$ chruby
* ruby-2.2.4
ruby-2.3.1
也许我应该将它升级到更新的版本?请注意,我不想破坏项目中的其他依赖项。
最佳答案
您可以在其他位置安装非 HDRI 库,并通过执行以下操作确保首先找到其 Magick-config:
PATH="/alternative-path-you-choose/ImageMagick-6.8.9/bin-Q16:$PATH" gem install rmagick -v '2.13.2'
关于ruby-on-rails - 无法安装旧版本的 gem "rmagick",我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/39165704/