警告：Nokogiri是针对LibXML版本2.7.7构建的，但动态加载了2.6.16

当我启动Rails时，我无法理解为什么我从Nokogiri那里得到这个错误。 从我知道的一点点来看，似乎有些东西导致加载旧版本的libxml2，Nokogiri最终会使用它，而不是它编译的版本。

如果没有警告（并使用正确的libxml2），我需要做什么才能使其正常工作？

我在OS X 10.5.8的Macbook上运行它：

$ rake db:create (in /Users/gareth/Sites/Rails3/ngtest) WARNING: Nokogiri was built against LibXML version 2.7.7, but has dynamically loaded 2.6.16 HI. You're using libxml2 version 2.6.16 which is over 4 years old and has plenty of bugs. We suggest that for maximum HTML/XML parsing pleasure, you upgrade your version of libxml2 and re-install nokogiri. If you like using libxml2 version 2.6.16, but don't like this warning, please define the constant I_KNOW_I_AM_USING_AN_OLD_AND_BUGGY_VERSION_OF_LIBXML2 before requring nokogiri. ngtest_test already exists ngtest_development already exists $ DYLD_PRINT_LIBRARIES=1 rake db:create dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/bin/ruby dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/libruby.1.9.1.dylib dyld: loaded: /usr/lib/libSystem.B.dylib dyld: loaded: /usr/lib/libobjc.A.dylib dyld: loaded: /usr/lib/libgcc_s.1.dylib dyld: loaded: /usr/lib/system/libmathCommon.A.dylib dyld: loaded: /usr/lib/libauto.dylib dyld: loaded: /usr/lib/libstdc++.6.dylib dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/encdb.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/trans/transdb.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/etc.bundle (in /Users/gareth/Sites/Rails3/ngtest) dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/stringio.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/syck.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/digest/sha1.bundle dyld: loaded: /usr/lib/libcrypto.0.9.7.dylib dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/digest.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/iso_8859_1.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/zlib.bundle dyld: loaded: /usr/lib/libz.1.dylib dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/strscan.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/bigdecimal.bundle dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/mysql-2.8.1/lib/mysql_api.bundle dyld: loaded: /usr/local/Cellar/mysql/5.1.54/lib/mysql/libmysqlclient.16.dylib dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/openssl.bundle dyld: loaded: /usr/lib/libssl.0.9.7.dylib dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/fcntl.bundle dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/eventmachine-0.12.10/lib/rubyeventmachine.bundle dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/thin-1.2.7/lib/thin_parser.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/digest/md5.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/iconv.bundle dyld: loaded: /usr/lib/libiconv.2.dylib dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/json-1.4.6/ext/json/ext/json/ext/parser.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/utf_16be.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/utf_16le.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/utf_32be.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/enc/utf_32le.bundle dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/json-1.4.6/ext/json/ext/json/ext/generator.bundle dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/rpeg-markdown-1.4.6/lib/peg_markdown.bundle dyld: loaded: /usr/local/Cellar/glib/2.24.2/lib/libglib-2.0.0.dylib dyld: loaded: /usr/local/Cellar/gettext/0.17/lib/libintl.8.dylib dyld: loaded: /System/Library/Frameworks/Carbon.framework/Versions/A/Carbon dyld: loaded: /System/Library/Frameworks/CoreServices.framework/Versions/A/CoreServices dyld: loaded: 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/usr/lib/libicucore.A.dylib dyld: loaded: /System/Library/Frameworks/DiskArbitration.framework/Versions/A/DiskArbitration dyld: loaded: /usr/lib/libbsm.dylib dyld: loaded: /System/Library/Frameworks/Security.framework/Versions/A/Security dyld: loaded: /System/Library/Frameworks/SystemConfiguration.framework/Versions/A/SystemConfiguration dyld: loaded: /usr/lib/libsqlite3.0.dylib dyld: loaded: /usr/lib/libresolv.9.dylib dyld: loaded: /usr/lib/libxml2.2.dylib dyld: loaded: /usr/lib/libxslt.1.dylib dyld: loaded: /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ATS.framework/Versions/A/ATS dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/ColorSync.framework/Versions/A/ColorSync dyld: loaded: /System/Library/Frameworks/ApplicationServices.framework/Versions/A/Frameworks/CoreGraphics.framework/Versions/A/CoreGraphics dyld: loaded: 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/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLImage.dylib dyld: loaded: /usr/lib/libffi.dylib dyld: loaded: /System/Library/Frameworks/CoreVideo.framework/Versions/A/CoreVideo dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLU.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGL.dylib dyld: loaded: /System/Library/Frameworks/OpenGL.framework/Versions/A/Libraries/libGLProgrammability.dylib dyld: loaded: /System/Library/PrivateFrameworks/InstallServer.framework/Versions/A/InstallServer dyld: loaded: /Users/gareth/.rvm/gems/ruby-1.9.2-p136/gems/nokogiri-1.4.4/lib/nokogiri/nokogiri.bundle dyld: loaded: /usr/local/Cellar/libxslt/1.1.26/lib/libexslt.0.dylib dyld: loaded: /usr/local/Cellar/libxslt/1.1.26/lib/libxslt.1.dylib dyld: loaded: /usr/local/Cellar/libxml2/2.7.7/lib/libxml2.2.dylib WARNING: Nokogiri was built against LibXML version 2.7.7, but has dynamically loaded 2.6.16 HI. You're using libxml2 version 2.6.16 which is over 4 years old and has plenty of bugs. We suggest that for maximum HTML/XML parsing pleasure, you upgrade your version of libxml2 and re-install nokogiri. If you like using libxml2 version 2.6.16, but don't like this warning, please define the constant I_KNOW_I_AM_USING_AN_OLD_AND_BUGGY_VERSION_OF_LIBXML2 before requring nokogiri. dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/racc/cparse.bundle dyld: loaded: /Users/gareth/.rvm/rubies/ruby-1.9.2-p136/lib/ruby/1.9.1/i386-darwin9.8.0/socket.bundle ngtest_test already exists ngtest_development already exists $ nokogiri -v --- warnings: [] nokogiri: 1.4.4 ruby: version: 1.9.2 platform: i386-darwin9.8.0 engine: ruby libxml: binding: extension compiled: 2.7.7 loaded: 2.7.7 

Answer 1

最后我不得不针对我安装的特定版本的xml2和xslt安装gem：

 gem install nokogiri -- --with-xml2-include=/usr/local/Cellar/libxml2/2.7.7/include/libxml2 --with-xml2-lib=/usr/local/Cellar/libxml2/2.7.7/lib --with-xslt-dir=/usr/local/Cellar/libxslt/1.1.26 #. scrollbar line, so the code can be seen 

问题很可能是糟糕的库管理，在包管理器之间切换而没有足够整洁。

Answer 2

修复Nokogiri w。 libxml2 2.7.8加载libxml2 2.7.3

想要添加上面的答案：如果你在OSX上的Cellar目录中没有libxml2，你可以使用自制软件安装它，如Nokogiri的主页（自制0.8或更高版本，使用brew -v测试）所述：

 brew install libxml2 libxslt brew link libxml2 libxslt gem install nokogiri -- --with-xml2-lib=/usr/local/Cellar/libxml2/2.7.8/lib --with-xml2-include=/usr/local/Cellar/libxml2/2.7.8/include 

Answer 3

我有一个不同的警告：

 WARNING: Nokogiri was built against LibXML version 2.7.7, but has dynamically loaded 2.7.8 

使用较新的库重建gem以消除警告：

 gem install --no-rdoc --no-ri nokogiri -- --with-xml2-include=/opt/local/include/libxml2 --with-xml2-lib=/opt/local/lib 

Answer 4

接受的解决方案对我不起作用，但这样做：

 gem install --no-rdoc --no-ri nokogiri -- --with-xml2-include=/usr/include/libxml2 --with-xml2-lib=/usr/lib 

这将针对MacOS系统库进行编译。 不过，Macports（我更喜欢冲泡）可能在我的机器上没有正确设置。

Answer 5

Nokogiri构建正确，但首先需要另一个gem并加载旧的libxml2库。

在您的应用程序中，您应该首先要求nokogiri，强制应用程序加载动态libxml2库，而不是由未能指定要加载哪个库的gem加载的旧系统版本的libxml2。

Answer 6

Per Stella Miranda，我按照步骤解决了我在山狮上的nokogiri问题：

1. gem卸载nokogiri
2. gem安装nokogiri

没有更多的nokogiri警告！

Answer 7

确保它不仅仅是ruby编译问题。 这刚刚出现在OSX Mountain Lion上，因为系统libxml被撞了，但ruby是在之前的libxml上编译的。 它可以通过卸载并重新安装ruby来解决。

我在另一个post上的答案供参考： https ： //stackoverflow.com/a/11714789/1561677

Answer 8

我曾经有类似的问题，你真的需要在你的系统上使用两个版本的libxml吗？ 否则，卸载所有旧版本的libxml，以防强制重新安装nokogiri。

Answer 9

我遇到了同样的问题。 我所做的只是在我的Gemfile中添加一行以明确要求最新版本的nokogiri（截至2013年3月17日，1.5.6），然后我做了一个bundle update nokogiri ，它修复了问题。