Tag: gem

rails中的Active_Model错误: 我回到了我正在处理的rails项目，命令“rails s”开始失败。终端建议我运行捆绑安装。当我这样做时，我收到以下消息： Bundler could not find compatible versions for gem “activemodel”: In Gemfile: protected_attributes (>= 0) ruby depends on activemodel (= 4.0.0.beta) ruby rails (>= 0) ruby depends on activemodel (3.2.12) 我已经更新了ruby和rails。我重新安装了活动模型并重新启动了我的终端。我的gems文件非常简单： gem ‘rails’ gem ‘jquery-rails’ gem ‘devise’ gem ‘simple_form’ gem ‘protected_attributes’ group :production do gem ‘pg’ end group :development, :test […]

gem没有在Heroku上卸载: ==> dyno-760868.log (crash) Your application is requiring a file that it can’t find. 我的应用程序崩溃，因为它找不到gbarcode – 我不想再使用它了。我从我的开发环境中卸载了gem并希望将它推送到heroku。如何在没有gem的情况下启动我的应用程序？

如何在终端ruby应用程序中执行文本框？: 如何在终端ruby应用程序中执行文本框？有没有这样的gem，或者它可以使用纯ruby完成。

ActiveRecord :: Base的未定义方法`mysql_connection’：Class: 我已经将rails2升级到rails3，当我尝试rake db：migrate时，我发现了以下错误 `rake aborted!` undefined method `mysql_connection’ for ActiveRecord::Base:Class /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/dynamic_matchers.rb:55:in `method_missing’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:315:in `new_connection’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:325:in `checkout_new_connection’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:247:in `block (2 levels) in checkout’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `loop’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:242:in `block in checkout’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:239:in `checkout’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:102:in `block in connection’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/connection_adapters/abstract/connection_pool.rb:101:in `connection’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/ar-octopus-0.6.1/lib/octopus/proxy.rb:153:in `select_connection’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/ar-octopus-0.6.1/lib/octopus/proxy.rb:215:in `method_missing’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/migration.rb:662:in `initialize’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/migration.rb:570:in `new’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/migration.rb:570:in `up’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/ar-octopus-0.6.1/lib/octopus/migration.rb:117:in `up_with_octopus’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/activerecord-3.2.14/lib/active_record/migration.rb:551:in `migrate’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/ar-octopus-0.6.1/lib/octopus/migration.rb:111:in `block in migrate_with_octopus’ /home/cis/.rvm/gems/ruby-1.9.3-p392@rails3214/gems/ar-octopus-0.6.1/lib/octopus/proxy.rb:171:in `run_queries_on_shard’ […]

在Ruby上安装curb gem: 尝试在我的Mac上安装curb时出现此错误： /usr/bin/gcc-4.2 -dynamic -bundle -o curb_core.bundle curb.o curb_easy.o curb_errors.o curb_multi.o curb_postfield.o curb_upload.o -L. -L/Users/user/.rvm/rubies/ruby-1.9.2-p318/lib -L/Users/user/.rvm/usr/lib -L. -L/usr/local/lib -Wl,-undefined,dynamic_lookup -Wl,-multiply_defined,suppress -Wl,-flat_namespace -lruby.1.9.1 -lpthread -ldl -lobjc -lcurl ld: in /usr/local/lib/libssl.0.9.8.dylib, missing required architecture x86_64 in file for architecture x86_64 collect2: ld returned 1 exit status make: *** [curb_core.bundle] Error 1 有什么建议？

RubyGems的问题: 我遇到了rubygem的一些问题。我试图安装gem hitimes但是在尝试安装它之后（甚至使用sudo）我得到了这个错误： http ： //cl.ly/Hvlf 。可能是因为我已经尝试了几次，所以我已经安装了它。有没有办法卸载gem？ gem可以在RubyGems.org上找到，我甚至试图下载.gem文件并以这种方式安装但没有运气。

升级gem是否会打破旧的Rails应用程序？: 我在Rails 1.x上运行了大量的Rails应用程序。我需要升级gem所以问题是，升级gem后这些旧应用程序是否仍然有用？谢谢。

无法启动WEBrick，Rails gem的文件夹为空: 我正在关注Michael Hartl的Ruby on Rails教程，我一直试图在我的Windows 7机器上启动rails服务器。我正按照第1.2.5章中的说明尝试这样做。，即通过打字 rails server 但是，这不会启动WEBrick，而是返回’rails’命令的使用说明。我一直在谷歌上搜索一段时间，而且一些答案似乎暗示了rails gem的问题。现在，我找到了rails gem文件夹（“C：\ RailsInstaller \ Ruby1.9.3 \ lib \ ruby \ gems \ 1.9.1 \ gems \ rails-3.2.3”），它是空的！当我尝试时 rails -v 它返回“Rails 3.2.16”，虽然我删除了这个版本的gem; 如果我试试 gem list 它一直告诉我版本是3.2.3。这一直持续到我删除铁路版本3.2.16，结果导致了 rails -v 返回’Rails 3.2.3’，但我还是无法启动WEBrick。任何帮助，将不胜感激。

在OS X El Capitan 10.11上安装puma ruby gem的问题: 当试图在OS X El Capitan上安装puma“任何版本”时，它仍然失败。值得庆幸的是， / user / dennis-best能够获得一些亮点，值得为此付出一切荣誉。

我无法在Leopard中安装任何gem或更新: bogon:~ Zhulin$ ruby -v ruby 1.8.6 (2009-06-08 patchlevel 369) [universal-darwin9.0] bogon:~ Zhulin$ rails -v Rails 1.2.6 bogon:~ Zhulin$ gems -v -bash: gems: command not found bogon:~ Zhulin$ sudo gem install heroku Password: ERROR: While executing gem … (Gem::RemoteSourceException) HTTP Response 302 fetching http://gems.rubyforge.org/yaml bogon:~ Zhulin$ gem -v 1.0.1 bogon:~ Zhulin$ gem list *** LOCAL GEMS […]