无法创建新的Ruby项目

I have just started learning Ruby on Rails and I'm stuck in the beginning! I have installed the package from http://www.railsinstaller.org/ and followed the installation steps. Yet when I type: rails new rubyProject I get the following:

我刚开始学习Ruby on Rails而且我一开始就陷入困境!我已经从http://www.railsinstaller.org/安装了软件包,并按照安装步骤进行操作。然而当我输入:rails new rubyProject我得到以下内容:

Gem::InstallError: ffi requires Ruby version <2.5, >= 2.0.
An error occurred while installing ffi <1.9.18>, and bundler cannot continue.
Make sure that 'gem install ffi -v '1.9.18''succeeded before bundling.

I've read a number of articles but non of them worked for me. Can you help me?

我读了很多文章,但没有一篇文章适合我。你能帮助我吗?

1 个解决方案

#1

RailsInstaller does contain a few known bugs. Lets take a step back and start from scratch.

RailsInstaller确实包含一些已知的错误。让我们退后一步,从头开始。

Uninstall all traces of Ruby and RailsInstaller on your system.

卸载系统上所有Ruby和RailsInstaller的痕迹。

Ensure the RailsInstaller setup file says 3.3.0

确保RailsInstaller安装文件说3.3.0

Install RailsInstaller using the default options

使用默认选项安装RailsInstaller

Open the patched version of your cmd.exe (you'll find a new shortcut in your Start Menu) and configure Git and DevKit tools for your system. Here on always work using this cmd.exe. It will start in C:/Sites and will automatically show you your Git n Ruby versions.

打开cmd.exe的修补版本(您将在“开始”菜单中找到新的快捷方式)并为您的系统配置Git和DevKit工具。这里总是使用这个cmd.exe工作。它将从C:/ Sites开始,并将自动显示您的Git n Ruby版本。

Check installed Ruby version. (Should report v2.3.3 as per the website)

检查已安装的Ruby版本。 (应根据网站报告v2.3.3)

Then update all installed gems: (Important)
1. gem update --system --no-ri --no-rdoc to update your Rubygems version
2. gem update --no-document

然后更新所有已安装的gem :(重要)gem update --system --no-ri --no-rdoc更新你的Rubygems版本gem更新--no-document

Check Rails version. (rails -v) Should be 5.1.2

检查Rails版本。 (rails -v)应为5.1.2

#1