我有一个无法在CircleCI上构建的项目。所有测试均在本地通过。如果构建失败，并且我使用ssh重新运行了构建，那么我可以成功连接并运行所有命令，并且所有测试都将通过ssh会话。
构建在bundle exec rake db:create处失败
我尝试将config / application.rb中的require语句重新排列无济于事。有什么想法吗？
这里是完整的回溯：
bundle exec rake db:create --trace
rake aborted!
/usr/local/lib/ruby/2.4.0/uri.rb:99: warning: already initialized constant URI::VERSION_CODE
/usr/local/lib/ruby/2.4.0/uri.rb:99: warning: previous definition of VERSION_CODE was here
/usr/local/lib/ruby/2.4.0/uri.rb:100: warning: already initialized constant URI::VERSION
/usr/local/lib/ruby/2.4.0/uri.rb:100: warning: previous definition of VERSION was here
NameError: uninitialized constant URI::Generic
Did you mean? URI::Generic
/usr/local/lib/ruby/2.4.0/uri/ftp.rb:23:in `<module:URI>'
/usr/local/lib/ruby/2.4.0/uri/ftp.rb:13:in `<top (required)>'
/usr/local/lib/ruby/2.4.0/uri.rb:107:in `require'
/usr/local/lib/ruby/2.4.0/uri.rb:107:in `<top (required)>'
/usr/local/lib/ruby/2.4.0/uri/rfc2396_parser.rb:13:in `require'
/usr/local/lib/ruby/2.4.0/uri/rfc2396_parser.rb:13:in `<top (required)>'
/usr/local/lib/ruby/2.4.0/uri/common.rb:13:in `require'
/usr/local/lib/ruby/2.4.0/uri/common.rb:13:in `<top (required)>'
/usr/local/lib/ruby/2.4.0/uri/generic.rb:12:in `require'
/usr/local/lib/ruby/2.4.0/uri/generic.rb:12:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/core_ext/object/json.rb:6:in `require'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/core_ext/object/json.rb:6:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/core_ext/object.rb:13:in `require'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/core_ext/object.rb:13:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/configuration.rb:4:in `require'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/configuration.rb:4:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/railtie/configuration.rb:3:in `require'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/railtie/configuration.rb:3:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/railtie.rb:223:in `require'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/railtie.rb:223:in `config'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/railtie.rb:127:in `config'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/i18n_railtie.rb:11:in `<class:Railtie>'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/i18n_railtie.rb:10:in `<module:I18n>'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/i18n_railtie.rb:9:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/railtie.rb:4:in `require'
/usr/local/bundle/ruby/2.4.0/gems/activesupport-5.2.4.1/lib/active_support/railtie.rb:4:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails.rb:17:in `require'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails.rb:17:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/all.rb:3:in `require'
/usr/local/bundle/ruby/2.4.0/gems/railties-5.2.4.1/lib/rails/all.rb:3:in `<top (required)>'
/home/circleci/vce/config/application.rb:7:in `require'
/home/circleci/vce/config/application.rb:7:in `<top (required)>'
/home/circleci/vce/Rakefile:4:in `require'
/home/circleci/vce/Rakefile:4:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/rake_module.rb:28:in `load'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/rake_module.rb:28:in `load_rakefile'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:689:in `raw_load_rakefile'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:94:in `block in load_rakefile'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:176:in `standard_exception_handling'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:93:in `load_rakefile'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:77:in `block in run'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:176:in `standard_exception_handling'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/lib/rake/application.rb:75:in `run'
/usr/local/bundle/ruby/2.4.0/gems/rake-10.5.0/bin/rake:33:in `<top (required)>'
/usr/local/bundle/ruby/2.4.0/bin/rake:23:in `load'
/usr/local/bundle/ruby/2.4.0/bin/rake:23:in `<top (required)>'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `load'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:63:in `kernel_load'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/cli/exec.rb:28:in `run'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/cli.rb:476:in `exec'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor.rb:399:in `dispatch'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/cli.rb:30:in `dispatch'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/vendor/thor/lib/thor/base.rb:476:in `start'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/cli.rb:24:in `start'
/usr/local/bundle/gems/bundler-2.1.4/exe/bundle:46:in `block in <top (required)>'
/usr/local/bundle/gems/bundler-2.1.4/lib/bundler/friendly_errors.rb:123:in `with_friendly_errors'
/usr/local/bundle/gems/bundler-2.1.4/exe/bundle:34:in `<top (required)>'
/usr/local/bundle/bin/bundle:113:in `load'
/usr/local/bundle/bin/bundle:113:in `<main>'
Exited with code exit status 1
CircleCI received exit code 1```
这可能不是一个完整的答案，但是在使用circleci/ruby:2.4.2-jessie-node图像时，我遇到了类似的问题。我没有深入研究，但是从表面上看，加载URI::Generic类似乎存在问题。
由于此错误来自核心红宝石本身，因此我将其粉刷到该图像上，并将图像更新为circleci/ruby:2.4.3-jessie-node，但没有遇到相同的错误。
我有更多信息，但没有机会进行更深入的了解：
TL; DR
在文件.circleci/config.yml更新中：
docker:
- image: circleci/ruby:2.4.2-jessie-node
to
docker:
- image: circleci/ruby:2.4.3-jessie-node