rails 1.9.3`to_specs'：找不到railties Gem：加载错误答案

【问题标题】：rails 1.9.3 `to_specs': Could not find railties Gem:load errorrails 1.9.3`to_specs'：找不到railties Gem：加载错误
【发布时间】：2021-02-22 15:00:02
【问题描述】：

我遇到了错误。

rails -v
/opt/ruby/lib/ruby/1.9.1/rubygems/dependency.rb:247:in `to_specs': Could not find      railties (>= 0) amongst [daemons-1.1.9, diff-lcs-1.1.3, expectations-2.0.0, faraday-0.8.9, faraday_middleware-0.8.8, ftpfxp-0.0.4, json-1.7.7, json-1.6.1, json-1.4.3, lumberg-1.1.1, metaclass-0.0.1, mime-types-1.24, mocha-0.12.7, multipart-post-1.2.0, mysql-2.8.1, rest-client-1.6.7, rspec-2.11.0, rspec-core-2.11.1, rspec-expectations-2.11.3, rspec-mocks-2.11.3, stomp-1.2.2, system_timer-1.2.4, systemu-1.2.0] (Gem::LoadError)
    from /opt/ruby/lib/ruby/1.9.1/rubygems/dependency.rb:256:in `to_spec'
    from /opt/ruby/lib/ruby/1.9.1/rubygems.rb:1231:in `gem'
    from /home/adsudxuy/ruby/gems/bin/rails:22:in `<main>'

我的 Gemrc 文件如下：

cat .gemrc
---
gem: --remote --gen-rdoc --run-tests
gemhome: /home/adsudxuy/ruby/gems
gempath: [/opt/ruby/lib/ruby/gems/1.9.1,
      /home/adsudxuy/ruby/gems]
rdoc: --inline-source --line-numbers

我的 bash 个人资料如下：＃开始 # .bash_profile

# Get the aliases and functions
if [ -f ~/.bashrc ]; then
    . ~/.bashrc
fi

# User specific environment and startup programs

#PATH=$PATH:$HOME/bin
PATH=$HOME/.gems/bin:$HOME/bin:$PATH

GEM_HOME=$HOME/.gems
GEM_PATH=$HOME/.gems:/usr/lib/ruby/gems/1.8

export PATH GEM_HOME GEM_PATH

#export PATH
#END

另外，供您参考，我的 gem env 如下：

gem env
RubyGems Environment:
- RUBYGEMS VERSION: 1.8.23
- RUBY VERSION: 1.9.3 (2013-05-15 patchlevel 429) [x86_64-linux]
- INSTALLATION DIRECTORY: /home/user_name/ruby/gems
- RUBY EXECUTABLE: /opt/ruby/bin/ruby
- EXECUTABLE DIRECTORY: /home/user_name/ruby/gems/bin
- RUBYGEMS PLATFORMS:
- ruby
- x86_64-linux
- GEM PATHS:
 - /home/user_name/ruby/gems
 - /opt/ruby/lib/ruby/gems/1.9.1
- GEM CONFIGURATION:
 - :update_sources => true
 - :verbose => true
 - :benchmark => false
 - :backtrace => false
 - :bulk_threshold => 1000
 - "gem" => "--remote --gen-rdoc --run-tests"
 - "gemhome" => "/home/user_name/ruby/gems"
 - "gempath" => ["/opt/ruby/lib/ruby/gems/1.9.1", "/home/user_name/ruby/gems"]
 - "rdoc" => "--inline-source --line-numbers"
 - REMOTE SOURCES:
 - http://rubygems.org/

请提出问题以及我应该如何纠正它。提前致谢。

【问题讨论】：

bundle show railties 说什么？我看到 .gemrc 和 .bashrc 有不同的 gempath 序列。这是有道理的，请指定两者中唯一的一个。
@rahul 似乎没有正确安装 rails 或其依赖项。请同时显示宝石列表以了解详细信息
@МалъСкрылевъ bundle show railties 给出的错误与 rails -v 给出的错误相同。另外，我已经更改了路径，现在仍然出现相同的错误。
@G.B gem 列表如下 *** LOCAL GEMS *** 守护进程 (1.1.9) diff-lcs (1.1.3) 期望 (2.0.0) faraday (0.8.9) faraday_middleware (0.8.8) ftpfxp (0.0.4) json (1.7.7, 1.6.1, 1.4.3) lumberg (1.1.1) 元类 (0.0.1) mime-types (1.24) mocha (0.12.7) multipart -post (1.2.0) mysql (2.8.1) rest-client (1.6.7) rspec (2.11.0) rspec-core (2.11.1) rspec-expectations (2.11.3) rspec-mocks (2.11.3) ) stomp (1.2.2) system_timer (1.2.4) systemu (1.2.0)
请提供which ruby，然后是which bundle，和which gem，然后尝试手动安装railties gem install railties

标签： ruby-on-rails ruby gem webserver

【解决方案1】：

尝试观察到 railties gem 的路径：

bundle show railties

还有gem 应用：

gem list | grep railties

如果失败，请尝试手动安装 gem：

gem install railties

如果您确定显示 gem，请验证 GEM_PATH 和 GEM_HOME 变量没有被例如rvm app 破坏。然后将它们正确设置为在系统有效主页上可用，以及 gems 的路径，类似于：

export GEM_PATH=/usr/lib/ruby/gems/2.7.0:/usr/lib/ruby/gems/2.5.0:/usr/lib/ruby/gems/3.0.0
export GEM_HOME=/usr/lib/ruby/gems/2.7.0

【讨论】：

【解决方案2】：

尝试安装通用 ruby 版本：

sudo apt-get install ruby-dev

然后试试，

sudo gem install railties

【讨论】：