Ruby 关于 Rails - 如何处理 gem 依赖

Question

有什么规则可以解决不兼容的 gem 问题吗？

作为示例，我展示了添加 gem 'google-cloud-speech'

后我目前遇到的问题

我收到错误：

Bundler could not find compatible versions for gem
"activesupport":   In Gemfile:
  gcloud_storage was resolved to 0.0.3, which depends on
    gcloud (= 0.7.2) was resolved to 0.7.2, which depends on
      google-api-client (~> 0.8.3) was resolved to 0.8.7, which depends on
        activesupport (< 5.0, >= 3.2)

  jbuilder (~> 2.5) was resolved to 2.7.0, which depends on
    activesupport (>= 4.2.0)

  jbuilder (~> 2.5) was resolved to 2.7.0, which depends on
    activesupport (>= 4.2.0)

  jbuilder (~> 2.5) was resolved to 2.7.0, which depends on
    activesupport (>= 4.2.0)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    activesupport (= 5.1.6)

  rails (~> 5.1.6) was resolved to 5.1.6, which depends on
    sprockets-rails (>= 2.0.0) was resolved to 3.2.1, which depends on
      activesupport (>= 4.0) Bundler could not find compatible versions for gem "faraday":   In Gemfile:
  gcloud_storage was resolved to 0.0.3, which depends on
    faraday (= 0.9.0)

  gcloud_storage was resolved to 0.0.3, which depends on
    gcloud (= 0.7.2) was resolved to 0.7.2, which depends on
      grpc (~> 0.13.1) was resolved to 0.13.1, which depends on
        googleauth (~> 0.5.1) was resolved to 0.5.2, which depends on
          faraday (~> 0.12) Bundler could not find compatible versions for gem "grpc":   In Gemfile:
  gcloud_storage was resolved to 0.0.3, which depends on
    gcloud (= 0.7.2) was resolved to 0.7.2, which depends on
      grpc (~> 0.13.1)

  google-cloud-speech was resolved to 0.20.0, which depends on
    grpc (~> 1.0)

Answer 1

您的 gem 尚未准备好用于 rails 5.x，因为它需要 activesupport（< 5.0，>= 3.2）通常在 gems 回购（如果不再维护，则可能不会）

Ruby 关于 Rails - 如何处理 gem 依赖

Ruby on Rails - how to deal with gem dependences

ruby

rubygems

ruby-on-rails

google-cloud-speech