我正在尝试安装mysql 2.8.1 gem。我将使用它在Ubuntu 10.04上构建Rails 2.0.2应用程序。我会使用Ruby 1.8.7。我已经安装了开发依赖项(其他宝石)。由于某些原因,我无法安装它。我无法弄清楚如何修复它。请帮忙!!
我尝试安装时在终端中收到以下内容:
mohnish@pc146724-desktop:~/Downloads$ sudo gem install mysql-2.8.1.gem
Building native extensions. This could take a while...
ERROR: Error installing mysql-2.8.1.gem:
ERROR: Failed to build gem native extension.
/usr/bin/ruby1.8 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=/usr/bin/ruby1.8
--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 /usr/lib/ruby/gems/1.8/gems/mysql-2.8.1 for inspection.
Results logged to /usr/lib/ruby/gems/1.8/gems/mysql-2.8.1/ext/mysql_api/gem_make.out
mohnish@pc146724-desktop:~/Downloads$
感谢您的帮助!!
答案 0 :(得分:122)
试试这个,然后安装mysql gem:
sudo apt-get install libmysqlclient-dev
如果这还不够,请尝试这样
sudo apt-get install libmysqlclient-dev libmysqlclient16 ruby-dev
答案 1 :(得分:9)
试试这个,然后安装mysql gem:
sudo apt-get install libmysqlclient-dev libmysqlclient16
这在运行sudo gem install mysql之后起作用。
文档仍然无法正确安装(大量的“无定义”错误,尽管这不是真正的大问题。
答案 2 :(得分:2)
您应该执行错误消息告诉您的操作:检查mkmf.log!使用find /usr/lib/ruby/gems/1.8/gems/ -name mkmf.log搜索此文件。通常,出现此错误消息是因为您忘记为您尝试安装的扩展安装-dev软件包。所以如果你想安装mysql gem,你可能忘了先安装libmysqlclient14-dev。进行apt-cache搜索grep dev找到合适的包。
plz check this了解更多信息
答案 3 :(得分:0)
就我而言,我收到以下错误消息:
安装mysql(2.8.1)时发生错误,而Bundler不能 继续。确保
gem install mysql -v '2.8.1'
成功 在捆绑之前。
我试过:gem install mysql -v '2.8.1'
,我收到的错误信息类似于你得到的信息。
我修复了它,执行以下操作:
步骤(1):运行:sudo apt-get install libmysqlclient-dev
步骤(2):安装mysql:gem install mysql -v 2.8.1
您应该获得类似于此的成功消息:
成功安装mysql-2.8.1
安装ri文档 mysql-2.8.1 1 gem安装
我希望我的回答有所帮助。