2

我将我的 Ubuntu 从 2014.04 升级到 2015.04，现在bundle exec rake db:migrate返回错误：

$ bundle exec rake db:migrate --trace
rake aborted!
Incorrect MySQL client library version! This gem was compiled for 5.5.37 but the client library is 5.6.25.
/home/nico/.rvm/gems/ruby-1.9.3-p362/gems/mysql2-0.2.11/lib/mysql2.rb:9:in `require'
/home/nico/.rvm/gems/ruby-1.9.3-p362/gems/mysql2-0.2.11/lib/mysql2.rb:9:in `<top (required)>'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `require'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:68:in `block (2 levels) in require'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `each'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:66:in `block in require'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `each'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler/runtime.rb:55:in `require'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/bundler-1.2.3/lib/bundler.rb:128:in `require'
/home/nico/myapp/config/application.rb:7:in `<top (required)>'
/home/nico/myapp/Rakefile:4:in `require'
/home/nico/myapp/Rakefile:4:in `<top (required)>'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/rake_module.rb:25:in `load'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/rake_module.rb:25:in `load_rakefile'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:583:in `raw_load_rakefile'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:89:in `block in load_rakefile'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:88:in `load_rakefile'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:72:in `block in run'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:160:in `standard_exception_handling'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/lib/rake/application.rb:70:in `run'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/gems/rake-10.0.3/bin/rake:33:in `<top (required)>'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/bin/rake:19:in `load'
/home/nico/.rvm/gems/ruby-1.9.3-p362@global/bin/rake:19:in `<main>'
/home/nico/.rvm/gems/ruby-1.9.3-p362/bin/ruby_noexec_wrapper:14:in `eval'
/home/nico/.rvm/gems/ruby-1.9.3-p362/bin/ruby_noexec_wrapper:14:in `<main>'

如何解决这个问题呢？
我宁愿避免更改服务器端版本。

由于“mysql2”gem，我无法运行“bundle update”的答案并不能解决问题。

本地版本：

  • 宝石 2.4.8
  • 导轨 3.0.19
  • mysql Ver 14.14 发行版 5.6.25
4

2 回答 2

4

运行这些命令解决了这个问题：

gem uninstall mysql2
bundle install
于 2015-07-29T09:07:17.557 回答
0

我遇到了同样的问题，接受的答案对我不起作用，很可能是因为我使用了 capistrano，它将所有 gem 安装到每个应用程序的共享目录中。

bundle show mysql2

（在您的应用程序文件夹中运行）将显示 mysql 的安装位置。然后删除它以及规范。

rm -rf /path/to/application/shared/bundle/ruby/<version>/gems/mysql2-<version>
rm /path/to/application/shared/bundle/ruby/<version>/specifications/mysql2-<version>.gemspec

应该做的伎俩。或者，只需删除完整的 bundle/* 并重新安装所有内容。

于 2015-12-04T14:06:47.583 回答