ruby-on-rails - 无法解析依赖关系:用户请求 'fileutils (= 1.0.2)' (Gem::UnsatisfiableDependencyError)

Question

我已经将一个分支部署到 Heroky，现在我想运行迁移或加载架构，无论哪种方式我都会得到:

Unable to resolve dependency: user requested 'fileutils (= 1.0.2)' (Gem::UnsatisfiableDependencyError)

我尝试重新启动heroku (heroku restart)，然后运行heroku run rake db:schema:load，但没有任何反应。

我还尝试运行 gem update --default 但没有任何改变。

我正在运行 Rails 5.2、Ruby 2.5.3、Heroku Cedar-14 Stack(已弃用，这可能是导致问题的原因吗？)

有什么想法吗？

Traceback (most recent call last):
    20: from /app/vendor/bundle/ruby/2.5.0/bin/rake:23:in `<main>'
    19: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems.rb:304:in `activate_bin_path'
    18: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems.rb:304:in `synchronize'
    17: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems.rb:306:in `block in activate_bin_path'
    16: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems.rb:243:in `finish_resolve'
    15: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/request_set.rb:397:in `resolve_current'
    14: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/request_set.rb:385:in `resolve'
    13: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:188:in `resolve'
    12: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/resolver.rb:42:in `resolve'
    11: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/resolution.rb:64:in `resolve'
    10: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/resolution.rb:106:in `start_resolution'
     9: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/resolution.rb:165:in `initial_state'
     8: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb:51:in `sort_dependencies'
     7: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb:69:in `with_no_such_dependency_error_handling'
     6: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver/molinillo/lib/molinillo/delegates/specification_provider.rb:52:in `block in sort_dependencies'
     5: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:277:in `sort_dependencies'
     4: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:277:in `with_index'
     3: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:277:in `sort_by'
     2: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:277:in `each'
     1: from /app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:283:in `block in sort_dependencies'
/app/vendor/ruby-2.5.3/lib/ruby/2.5.0/rubygems/resolver.rb:231:in `search_for': Unable to resolve dependency: user requested 'fileutils (= 1.0.2)' (Gem::UnsatisfiableDependencyError)

Answer 1

我在将bundlder升级到v1.9.9后遇到了这个错误，并通过以下方法解决了它:

sudo gem install bundler -v 1.17.3

如果您安装了多个捆绑程序版本，则可以通过以下方式运行特定版本的 bundle :bundle _1.17.3_ exec rspec

虽然看起来后来的 bundler 版本有很多错误，但拥有一个旧的 bundler 可能效果最好，至少这是我在 Ubuntu 上的。