Ruby:在任何来源中都找不到rake-0.9.2 [英] Ruby: Could not find rake-0.9.2 in any of the sources

问题描述

注意:由于忽略了Aptana标签，因此我重新标记了此问题.在Aptana Studio 3中选择运行服务器"时发生错误.Aptana尝试执行脚本/路轨服务器，这将导致以下错误.

Note: I retagged this question since I neglected to include the Aptana tag. The error occurs when choosing "run server" in Aptana Studio 3. Aptana tries to execute script/rails server, which results in the error below.

Aptana大师也许可以回答吗?

Perhaps an Aptana guru can answer?

我已经仔细检查并在发现的所有类似问题中尝试了建议的解决方案.大多数问题都没有被接受的答案.

I've looked through and tried the suggested solutions in all the similar questions I found. Most of the questions did not have an accepted answer.

我已经开始了一个新的Rails项目以开始一个教程，并且当我尝试运行服务器时，我得到了臭名昭著的消息:

I've started a fresh Rails project to start on a tutorial, and when I try to run the server, I get the infamous:

在任何来源中都找不到rake-0.9.2

Could not find rake-0.9.2 in any of the sources

但是，宝石列表显示:

耙(0.9.2，0.8.7)

rake (0.9.2, 0.8.7)

当宝石列表清楚地显示宝石在那里时，我怎么能收到此错误?

How can I be receiving this error when gem list clearly shows the gem is there?

如何调试和解决此问题?

How can I debug and resolve this issue?

我的gemfile是:

My gemfile is:

gem 'rails', '3.0.4' 
gem 'sqlite3' 
gem 'sqlite3-ruby', :require =>'sqlite3'

推荐答案

您需要在Gemfile中要求rake gem

You need to require rake gem in your Gemfile

gem 'rails', '3.0.4' 
gem 'sqlite3' 
gem 'sqlite3-ruby', :require =>'sqlite3'
gem 'rake', '0.9.2'

现在运行bundle install，确保您已连接互联网. 现在，如果要执行rake任务，请使用bundle exec rake task_name

now run bundle install make sure you are connected with internet. now if you want to execute rake tasks then use bundle exec rake task_name

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