我开始尝试建立本地 Rails 安装以进行开发。我安装后使用apt-get
但是,我了解了RVM,所以我删除了早期的一个,并从RVM重新安装。不过,看起来我还有残留的问题。具体来说,当我尝试安装导轨时,我得到......
$ gem install rails
ERROR: While executing gem ... (Gem::FilePermissionError)
You don't have write permissions into the /var/lib/gems/1.9.1 directory.
这看起来已经是一个问题了,因为我不希望它位于 /var/ 目录中,我希望它位于用户目录中。所以,我检查以下内容...
$ gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.11
- RUBY VERSION: 1.9.3 (2011-10-30 patchlevel 0) [x86_64-linux]
- INSTALLATION DIRECTORY: /var/lib/gems/1.9.1
- RUBY EXECUTABLE: /usr/bin/ruby1.9.1
- EXECUTABLE DIRECTORY: /usr/local/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /var/lib/gems/1.9.1
- /home/myusername/.gem/ruby/1.9.1
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
以及 sudo :
$ sudo gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.11
- RUBY VERSION: 1.9.3 (2011-10-30 patchlevel 0) [x86_64-linux]
- INSTALLATION DIRECTORY: /var/lib/gems/1.9.1
- RUBY EXECUTABLE: /usr/bin/ruby1.9.1
- EXECUTABLE DIRECTORY: /usr/local/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
- /var/lib/gems/1.9.1
- /home/myusername/.gem/ruby/1.9.1
- GEM CONFIGURATION:
- :update_sources => true
- :verbose => true
- :benchmark => false
- :backtrace => false
- :bulk_threshold => 1000
- REMOTE SOURCES:
- http://rubygems.org/
由于某种原因,gems 似乎位于 /var/lib 中。这是正常的吗?我该如何解决这个问题以便安装 Rails gem?
编辑:更新!
在我看来,我安装了两次 gems,一次在 /var/lib/gems/1.9.91 (坏),一次在 /home/myusername/.gem/ruby/1.9.1 (好)。
我认为这里发生的情况是,当我输入“gem”时, /var/lib/gems/1.9.1 (坏)中的安装优先于 /home/myusername/.gem/ruby/1.9.1 (好) 。谁能证实这一点吗?另外,仅仅删除坏目录就可以修复问题,还是会导致问题?