2
我在Debian上运行Ruby 1.9.3，没有Rails。我有一个需要mysql的脚本，所以我运行了gem install mysql，并且安装正常。未加载Ruby宝石
但是，当我执行脚本时，我得到一个“无法加载这样的文件”的错误。
/usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:51:in `require': cannot load such file -- mysql (LoadError)
from /usr/local/lib/site_ruby/1.9.1/rubygems/core_ext/kernel_require.rb:51:in `require'
from db-test.rb:5:in `<main>'
进一步信息：我已经更新到RBENV，但现在的MySQL不会安装。
ruby --version给出：
ruby 1.9.3p484 (2013-11-22 revision 43786) [x86_64-linux]
which ruby给出：
/home/poconnor/.rbenv/shims/ruby
的gem environment输出为：
RubyGems Environment:
- RUBYGEMS VERSION: 2.1.11
- RUBY VERSION: 1.9.3 (2013-11-22 patchlevel 484) [x86_64-linux]
- INSTALLATION DIRECTORY: /home/poconnor/ruby/gems
- RUBY EXECUTABLE: /home/poconnor/.rbenv/versions/1.9.3-p484/bin/ruby
- EXECUTABLE DIRECTORY: /home/poconnor/ruby/gems/bin
- SPEC CACHE DIRECTORY: /home/poconnor/.gem/specs
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /home/poconnor/ruby/gems
- /lib/ruby/gems/1.9.3
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- https://rubygems.org/
- SHELL PATH:
- /home/poconnor/.rbenv/versions/1.9.3-p484/bin
- /home/poconnor/.rbenv/libexec
- /home/poconnor/.rbenv/plugins/ruby-build/bin
- /home/poconnor/.rbenv/shims
- /home/poconnor/.rbenv/bin
- /usr/lib/lightdm/lightdm
- /usr/local/sbin
- /usr/local/bin
- /usr/sbin
- /usr/bin
- /sbin
- /bin
- /usr/games
- /usr/local/games
- /usr/java/jdk1.7.0_17/bin
- /usr/java/jdk1.7.0_17/bin
- /usr/java/jdk1.7.0_17/bin
- /usr/java/jdk1.7.0_17/bin
当我尝试gem install mysql我得到：
Building native extensions. This could take a while...
ERROR: Error installing mysql:
ERROR: Failed to build gem native extension.
/home/poconnor/.rbenv/versions/1.9.3-p484/bin/ruby extconf.rb
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lm... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lz... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lsocket... no
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lnsl... yes
checking for mysql_query() in -lmysqlclient... no
checking for main() in -lmygcc... no
checking for mysql_query() in -lmysqlclient... no
*** 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/poconnor/.rbenv/versions/1.9.3-p484/bin/ruby
--with-mysql-config
--without-mysql-config
--with-mysql-dir
--without-mysql-dir
--with-mysql-include
--without-mysql-include=${mysql-dir}/include
--with-mysql-lib
--without-mysql-lib=${mysql-dir}/lib
--with-mysqlclientlib
--without-mysqlclientlib
--with-mlib
--without-mlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-zlib
--without-zlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-socketlib
--without-socketlib
--with-mysqlclientlib
--without-mysqlclientlib
--with-nsllib
--without-nsllib
--with-mysqlclientlib
--without-mysqlclientlib
--with-mygcclib
--without-mygcclib
--with-mysqlclientlib
--without-mysqlclientlib
Gem files will remain installed in /home/poconnor/ruby/gems/gems/mysql-2.9.1 for inspection.
Results logged to /home/poconnor/ruby/gems/gems/mysql-2.9.1/ext/mysql_api/gem_make.out
非常感谢。
谢谢，我添加了该目录到我的路径，并且在mysql之前需要“rubygems”，但同样的问题在那里。 – pokero
它看起来像一个权限问题。也许这个问题是类似的：http://stackoverflow.com/questions/7518665/ruby-gem-environment-issue-loaderror-no-such-file-to-load-robots?rq=1 – grenierm5
我其实chmod'ed整个/usr/lib/ruby/gems/1.9.1目录为777，但结果相同。 – pokero