升级到 rails 5.1.1 时出现宝石问题答案

【问题标题】：Gem issues while upgrading to rails 5.1.1升级到 rails 5.1.1 时出现宝石问题
【发布时间】：2017-06-27 14:03:47
【问题描述】：

我在尝试升级到 rails 5.1.1 时遇到 gem 问题，当我从 4.2 运行 bundle update rails 时得到以下输出：知道问题可能是什么吗？

Bundler could not find compatible versions for gem "railties":
In Gemfile:
railties (~> 5.0)

devise was resolved to 4.3.0, which depends on
  railties (< 5.2, >= 4.1.0)

quiet_assets (~> 1.1) was resolved to 1.1.0, which depends on
  railties (< 5.0, >= 3.1)

rails (~> 5.1.1) was resolved to 5.1.1, which depends on
  railties (= 5.1.1)

responders (~> 2.1) was resolved to 2.4.0, which depends on
  railties (< 5.3, >= 4.2.0)

【问题讨论】：

标签： ruby-on-rails rubygems bundler gem-bundler ruby-on-rails-5

【解决方案1】：

认为问题可能出在railties (~> 5.0) 上，如果你再往下看，它会指出Rails 5.1.1 需要Railties 5.1.1。 rails (~> 5.1.1) was resolved to 5.1.1, which depends on railties (= 5.1.1)。顺便说一句，你以前升级过吗？可能值得从 4.2 升级到 5.0，然后再升级到 5.1，以确保您从已弃用的方法中捕获任何错误。看到这个->Rails Upgrade Guide

编辑添加：看起来 quiet_assets gem 已被弃用。如果您需要 quiet_assets gem，请查看这篇关于静音资产记录的文章（比我解释得更好）！ Quiet Assets in Rails 5

【讨论】：