Rails3_安装_报错_解决_(Gem::Installer::ExtensionBuildError)

 

相信不少同学在这里浪费时间了，我也是，好几个小时啊！！！

 

解决方法：

#1） myslq2的gem包问题，解决方法：

sudo apt-get install libmysqlclient-dev

参考：http://railsforum.com/viewtopic.php?id=40776

 

#2）rvm 1.9.2的问题， 根据rvm notes安装好需要的包后重新装ruby，参考我的上一篇 文章

 

错误：

lijg@lijg-desktop:~/workruby/helloapp$ ruby script/rails
Could not find gem 'mysql2 (>= 0)' in any of the gem sources listed in your Gemfile.
Run `bundle install` to install missing gems.

好啊，我就执行bundle吧，还是有错：

lijg@lijg-desktop:~/workruby/helloapp$ bundle install
Fetching source index for http://rubygems.org/
Using rake (0.9.2)
Using multi_json (1.0.3)
Using activesupport (3.1.0)
Using bcrypt-ruby (3.0.1)
Using builder (3.0.0)
Using i18n (0.6.0)
Using activemodel (3.1.0)
Using erubis (2.7.0)
Using rack (1.3.3)
Using rack-cache (1.0.3)
Using rack-mount (0.8.3)
Using rack-test (0.6.1)
Using hike (1.2.1)
Using tilt (1.3.3)
Using sprockets (2.0.0)
Using actionpack (3.1.0)
Using mime-types (1.16)
Using polyglot (0.3.2)
Using treetop (1.4.10)
Using mail (2.3.0)
Using actionmailer (3.1.0)
Using arel (2.2.1)
Using tzinfo (0.3.29)
Using activerecord (3.1.0)
Using activeresource (3.1.0)
Using ansi (1.3.0)
Using bundler (1.0.18)
Using coffee-script-source (1.1.2)
Using execjs (1.2.7)
Using coffee-script (2.2.0)
Using rack-ssl (1.3.2)
Using rdoc (3.9.4)
Using thor (0.14.6)
Using railties (3.1.0)
Using coffee-rails (3.1.1)
Using jquery-rails (1.0.14)
Installing mysql2 (0.3.7) with native extensions
/home/lijg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:552:in `rescue in block in build_extensions': ERROR: Failed to build gem native extension. (Gem::Installer::ExtensionBuildError)

        /home/lijg/.rvm/rubies/ruby-1.9.2-p290/bin/ruby extconf.rb
checking for rb_thread_blocking_region()... yes
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/lijg/.rvm/rubies/ruby-1.9.2-p290/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/lijg/.rvm/gems/ruby-1.9.2-p290/gems/mysql2-0.3.7 for inspection.
Results logged to /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/mysql2-0.3.7/ext/mysql2/gem_make.out
    from /home/lijg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:530:in `block in build_extensions'
    from /home/lijg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:505:in `each'
    from /home/lijg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:505:in `build_extensions'
    from /home/lijg/.rvm/rubies/ruby-1.9.2-p290/lib/ruby/site_ruby/1.9.1/rubygems/installer.rb:180:in `install'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/source.rb:101:in `block in install'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/rubygems_integration.rb:78:in `preserve_paths'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/source.rb:91:in `install'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/installer.rb:58:in `block (2 levels) in run'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/rubygems_integration.rb:93:in `with_build_args'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/installer.rb:57:in `block in run'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/installer.rb:49:in `run'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/installer.rb:8:in `install'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/cli.rb:220:in `install'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/vendor/thor/task.rb:22:in `run'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/vendor/thor/invocation.rb:118:in `invoke_task'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/vendor/thor.rb:263:in `dispatch'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/lib/bundler/vendor/thor/base.rb:386:in `start'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/gems/bundler-1.0.18/bin/bundle:13:in `<top (required)>'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/bin/bundle:19:in `load'
    from /home/lijg/.rvm/gems/ruby-1.9.2-p290/bin/bundle:19:in `<main>'

 

 

 

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