相关疑难解决方法(0)

你如何降级rubygems?

我安装了rubygems 1.3.1,但我想回到1.2.0.什么是降级rubygems的命令?

ruby rubygems

96
推荐指数
4
解决办法
6万
查看次数

Rails 3.0和Ruby 1.9.2rc:Rake命令返回'已初始化的常量'和堆栈级别太深的错误.有任何想法吗

我正在尝试在Ubuntu 10.04上运行Rails 3 beta 4和Ruby 1.9.2rc.它最初工作,但在完成我的第一个bundle install/package之后,我现在在所有rails项目中都遇到以下错误.即使是基本的"rails new testproject",然后是rake,也会显示错误消息.

简而言之,我很难过.关于可能导致这种情况的任何帮助都将非常感激.

我注意到的唯一 - 可能相关或不相关 - 是〜/ .bundle文件中的目录是ruby/1.9.1.我的机器上没有安装1.9.1 - 只有1.9.2rc.ruby -v带回1.9.2

(in /home/john/Websites/sandbox/testerino)
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:32: warning: already initialized constant RAKEVERSION
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake/alt_system.rb:32: warning: already initialized constant WINDOWS
WARNING: Possible conflict with Rake extension: String#ext already exists
WARNING: Possible conflict with Rake extension: String#pathmap already exists
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:404: warning: already initialized constant EMPTY_TASK_ARGS
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:452: warning: already initialized constant EMPTY
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:960: warning: already initialized constant RUBY_EXT
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:964: warning: already initialized constant RUBY
/home/john/.bundle/ruby/1.9.1/gems/rake-0.8.7/lib/rake.rb:1033: warning: already initialized constant …
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ruby rake ruby-on-rails

25
推荐指数
2
解决办法
9461
查看次数

无法运行rake db:migrate

我刚开始使用rails,我已经在我的ubuntu 11.04上完成了本教程http://pragmaticstudio.com/blog/2010/9/23/install-rails-ruby-mac的所有步骤,但是我无法运行rake db :迁移.

它给出了这个输出:

/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/version.rb:4: warning: already initialized constant MAJOR
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/version.rb:5: warning: already initialized constant MINOR
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/version.rb:6: warning: already initialized constant BUILD
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/version.rb:3: warning: already initialized constant NUMBERS
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/version.rb:9: warning: already initialized constant VERSION
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake.rb:26: warning: already initialized constant RAKEVERSION
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/early_time.rb:17: warning: already initialized constant EARLY
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/alt_system.rb:32: warning: already initialized constant WINDOWS
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/application.rb:28: warning: already initialized constant DEFAULT_RAKEFILES
WARNING: Possible conflict with Rake extension: String#ext already exists
WARNING: Possible conflict with Rake extension: String#pathmap already exists
/home/breedish/.rvm/gems/ruby-1.9.2-p290@global/gems/rake-0.9.2/lib/rake/task_arguments.rb:73: …
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ruby rake ruby-on-rails dbmigrate

2
推荐指数
1
解决办法
2346
查看次数

标签 统计

ruby ×3

rake ×2

ruby-on-rails ×2

dbmigrate ×1

rubygems ×1