Question

我的红宝石版本是1.9.3

我正在尝试将redmine项目配置到我的系统。

我安装了所有必需的宝石。但是，当我启动服务器时，它显示出一些错误。

Bundler could not find compatible versions for gem "rack":
In Gemfile:
rails (= 3.2.22) was resolved to 3.2.22, which depends on
  actionpack (= 3.2.22) was resolved to 3.2.22, which depends on
    rack (~> 1.4.5)

poltergeist was resolved to 1.0.0, which depends on
  capybara (~> 1.1) was resolved to 1.1.4, which depends on
    rack (>= 1.0.0)

rack-openid was resolved to 1.4.2, which depends on
  rack (>= 1.1.0)

poltergeist was resolved to 1.0.0, which depends on
  capybara (~> 1.1) was resolved to 1.1.4, which depends on
    rack-test (>= 0.5.4) was resolved to 0.6.3, which depends on
      rack (>= 1.0)

我不知道该怎么做......我的机架版本是1.6.4

Answer 1

您当前的版本应该适用于其他宝石，但如果您看到rails取决于

rack (~> 1.4.5)

这意味着它需要rack到1.4.0之间1.4.9的版本

<强>解决方案

在rack
中明确提及Gemfile的版本
```
gem 'rack', '~> 1.4.5'
```

或

删除大于1.4.9
的宝石版本
```
gem uninstall rack
```
然后手动安装gem
```
gem install rack -v 1.4.5
```

Answer 2

请使用bundle install安装所有必需的宝石

Bundler找不到gem“rack”的兼容版本：在Gemfile中：

2 个答案: