Mac OS X Mountain Lion“该系统上当前未安装Rails". [英] Mac OS X Mountain Lion "Rails is not currently installed on this system."

问题描述

我正在全新安装OS X Mountain Lion.我已经通过以下方式安装了滑轨:

I am on a fresh install of OS X Mountain Lion. I have installed rails via:

sudo gem install rails

一切似乎都正确安装，但是当我键入rails命令(rails s，rails -v等)时，出现此错误:

Everything seems to install correctly, but when I type the rails command (rails s, rails -v, etc), I get this error:

Rails is not currently installed on this system. To get the latest version, simply type:

    $ sudo gem install rails

You can then rerun your "rails" command.

"which rails"的结果为/usr/bin/rails

我以为这是路径问题，也许是，但是我可以看到/usr/bin是我的PATH的一部分.

I thought it was a path issue, and perhaps it is, but I can see that /usr/bin is part of my PATH.

有帮助吗?谢谢！

更新:我注意到其他Mac上具有相同操作系统的所有设备都运行良好……我只是不记得自己是如何工作的.如果我运行哪个轨道"，我会发现它位于完全不同的位置/Users/username/.rvm/gems/ruby-1.9.3-p194/bin/rails

UPDATE: I noticed everything on my other mac with same exact OS works pretty well... I just can't remember how I got it to work that way. If I run 'which rails' I see it's in a totally different place /Users/username/.rvm/gems/ruby-1.9.3-p194/bin/rails

推荐答案

使用RVM http://rvm.io 或rbenv安装更新的Rails版本，而不是OS X预先安装的版本.

Use RVM http://rvm.io or rbenv to install newer Rails versions than what come pre-installed with OS X.

遵循网站上的示例 https://rvm.io/rvm/install/，但基本上:

Follow examples on the site https://rvm.io/rvm/install/ but basically:

安装RVM:$ \curl -L https://get.rvm.io | bash -s stable

然后您可以$$ c3>来查看可用的红宝石(手数).只需$ rvm install 1.9.3即可获取最新版本的Ruby(在撰写本文时为ruby-1.9.3-p327)

You can then $rvm list known to see what Rubies are available to you (lots). And simply $rvm install 1.9.3 to get the most current version of Ruby (which as of this writing is ruby-1.9.3-p327)

将该红宝石设置为默认的$ rvm --default use 1.9.3

Set that ruby as your default $rvm --default use 1.9.3

创建一个默认的宝石集来存储您的宝石$ rvm use 1.9.3@mygemset --create --default

Create a default gemset to store your gems $rvm use 1.9.3@mygemset --create --default

然后安装Rails $ gem install rails将使您获得最新信息，今天与键入gem install rails -v 3.2.9

Then install Rails $ gem install rails will get you current which today is same as typing gem install rails -v 3.2.9

这篇关于Mac OS X Mountain Lion“该系统上当前未安装Rails".的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！