无法在 Ruby on Rails 上打开项目答案

【问题标题】：Can't open the project on Ruby on Rails无法在 Ruby on Rails 上打开项目
【发布时间】：2018-10-12 09:53:51
【问题描述】：

尝试从命令 - 'rails s' 启动 rails 服务器，并且回溯给了我这个东西：

    33: from bin/rails:4:in `<main>'
    32: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:in `require'
    31: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:259:in `load_dependency'
    30: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:in `block in require'
    29: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
    28: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
    27: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
    26: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
    25: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
    24: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.0.7/lib/rails/commands.rb:18:in `<main>'
    23: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.0.7/lib/rails/commands/commands_tasks.rb:49:in `run_command!'
    22: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.0.7/lib/rails/commands/commands_tasks.rb:85:in `server'
    21: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.0.7/lib/rails/commands/commands_tasks.rb:85:in `tap'
    20: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/railties-5.0.7/lib/rails/commands/commands_tasks.rb:88:in `block in server'
    19: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:in `require'
    18: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:259:in `load_dependency'
    17: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/activesupport-5.0.7/lib/active_support/dependencies.rb:293:in `block in require'
    16: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
    15: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
    14: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
    13: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
    12: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require'
    11: from /home/cryptoproject/config/application.rb:7:in `<main>'
    10: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler.rb:114:in `require'
     9: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:65:in `require'
     8: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:65:in `each'
     7: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:76:in `block in require'
     6: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:76:in `each'
     5: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bundler-1.16.6/lib/bundler/runtime.rb:81:in `block (2 levels) in require'
     4: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:29:in `require'
     3: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:20:in `require_with_bootsnap_lfi'
     2: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/loaded_features_index.rb:65:in `register'
     1: from /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `block in require_with_bootsnap_lfi'
/root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/bootsnap-1.3.2/lib/bootsnap/load_path_cache/core_ext/kernel_require.rb:21:in `require': libGeoIP.so.1: cannot open shared object file: No such file or directory - /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/geoip_city-0.2.0/geoip_city.so (LoadError)

这个项目是建立在另一个和旧版本的 gems 上的，我已经从 Gemfile 更新了它们，所以我清除了 Gemfile.lock 并再次安装了包。我需要做什么来解决这个问题？

【问题讨论】：

我目前没有答案，但有一些问题：你试过rbenv -rehash吗？ rails -v 和 ruby -v 显示什么？ /root/.rbenv/versions/2.5.1/lib/ruby/gems/2.5.0/gems/geoip_city-0.2.0/geoip_city.so 是否存在（并且它与您的 ruby 版本匹配）？如果没有，什么提供了geoip_city.so 文件？

标签： ruby-on-rails ruby server gemfile

【解决方案1】：

我认为问题出在geoip_city-0.2.0 gem。

此 gem 有一个未安装的依赖项 (GeoIP library)。

按照this tutorial 安装gem，它应该可以解决问题。

【讨论】：

抱歉，这对我没有帮助。同样的问题。

【解决方案2】：

如果您的项目是在“旧版本的 gems”上构建的，那几乎可以肯定它是在旧版本的 ruby 上编写的，并且您使用的是几个月前发布的 2.5.0。

在您的项目中查找 .rbenv 文件或 .ruby-version 文件。它将说明要使用哪个版本的 ruby。或者问问有它的人他们正在使用什么版本的红宝石。切换到那个版本，捆绑安装，你应该很高兴。

【讨论】：