ruby-on-rails - 捆绑更新时，Bundler 找不到 gem "railties"的兼容版本

Question

我搜索了SO，有几个相关问题，但都不能解决我的问题。

当我运行时:$ bundle update

Fetching gem metadata from https://gems.ruby-china.org/..........
Fetching version metadata from https://gems.ruby-china.org/..
Resolving dependencies...
Bundler could not find compatible versions for gem "railties":
In Gemfile:
devise (~> 3.5.0) was resolved to 3.5.1, which depends on
railties (< 5, >= 3.2.6)
rails (~> 5.0.1) was resolved to 5.0.1, which depends on
railties (= 5.0.1)

图片如下:

然后，我运行 $ rails -v:

Could not find gem 'devise (~> 3.5.0)' in any of the gem sources listed in your Gemfile or available on this machine.

Answer 1

您已将您的设计版本修复为“3.5.x”版本，这与 rails 5 不兼容。在您的 Gemfile 中，您需要更改您使用的设计版本，可能是 4.x 版本，作为 3.5，像这样:

gem '设计', '~> 3.5.0'

应该变成

gem '设计', '~> 4.1.0'

或类似的东西。