ruby-on-rails - 尝试使用 RVM 安装 Rails 时如何修复错误

Question

我正在尝试使用最新版本的 Ruby 通过 RVM 安装 Rails，但在安装 Nokogiri 时遇到问题。

我已经有一些使用 Ruby 2.4.0 的 RVM gemsets，我没有遇到任何问题。我安装了 Ruby 2.4.1:

rvm install ruby-2.4.0

并创建了一个新的 gemset:

rvm use ruby-2.4.1@quiniela --create

然后运行:

gem install rails --pre

我得到了这个错误:

ERROR:  Error installing rails:
    ERROR: Failed to build gem native extension.

    current directory: /Users/andres/.rvm/gems/ruby-2.4.1@quiniela/gems/nokogiri-1.7.1/ext/nokogiri
/Users/andres/.rvm/rubies/ruby-2.4.1/bin/ruby -r ./siteconf20170325-50295-1sw75cw.rb extconf.rb
checking if the C compiler accepts ... yes
checking if the C compiler accepts -Wno-error=unused-command-line-argument-hard-error-in-future... no
Building nokogiri using packaged libraries.
Using mini_portile version 2.1.0
checking for iconv.h... yes
checking for gzdopen() in -lz... yes
checking for iconv using --with-opt-* flags... yes

然后:

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
    --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=/Users/andres/.rvm/rubies/ruby-2.4.1/bin/$(RUBY_BASE_NAME)
    --help
    --clean
    --use-system-libraries
    --enable-static
    --disable-static
    --with-zlib-dir
    --without-zlib-dir
    --with-zlib-include
    --without-zlib-include=${zlib-dir}/include
    --with-zlib-lib
    --without-zlib-lib=${zlib-dir}/lib
    --enable-cross-build
    --disable-cross-build
/Users/andres/.rvm/gems/ruby-2.4.1@quiniela/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:366:in `block in execute': Failed to complete compile task (RuntimeError)
    from /Users/andres/.rvm/gems/ruby-2.4.1@quiniela/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:337:in `chdir'
    from /Users/andres/.rvm/gems/ruby-2.4.1@quiniela/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:337:in `execute'
    from /Users/andres/.rvm/gems/ruby-2.4.1@quiniela/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:111:in `compile'
    from /Users/andres/.rvm/gems/ruby-2.4.1@quiniela/gems/mini_portile2-2.1.0/lib/mini_portile2/mini_portile.rb:150:in `cook'
    from extconf.rb:364:in `block (2 levels) in process_recipe'
    from extconf.rb:257:in `block in chdir_for_build'
    from extconf.rb:256:in `chdir'
    from extconf.rb:256:in `chdir_for_build'
    from extconf.rb:363:in `block in process_recipe'
    from extconf.rb:262:in `tap'
    from extconf.rb:262:in `process_recipe'
    from extconf.rb:547:in `<main>'

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

  /Users/andres/.rvm/gems/ruby-2.4.1@quiniela/extensions/x86_64-darwin-16/2.4.0/nokogiri-1.7.1/mkmf.log

extconf failed, exit code 1

看来是Nokogiri的问题。

我遵循了“Error installing nokogiri: Failed to build gem native extension & libiconv is missing (OSX)”中的建议，但没有成功。

我更新了 RVM 并运行了 gem update 但没有成功。 Xcode 也更新了。

有人遇到过这个问题吗？

Answer 1

试试这个:

gem install nokogiri -- --with-xml2-include=/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.12.sdk/usr/include/libxml2 --使用系统库

它解决了我的问题......