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When I try to bundle exec I'm getting

You have already activated rake 0.9.3.beta.1, but your Gemfile requires rake Using bundle exec may solve this. ...

I have rake, version 0.9.3.beta.1

I would like to have version

How do I switch to it?

I'm on Ubuntu11

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can clarify your ubuntu version ubuntu 11.04 or ubuntu 11.10? – Tachyons Jun 19 '12 at 4:53
The latest version I see on, is 0.8.7. How did yo install 0.9.3.beta.1 – bbaja42 Jun 19 '12 at 8:44
@bbaja42 There are many ways to get the dev version - it can be installed from github, for example. – D_Bye Jun 19 '12 at 9:34
Hi Aboobacker Mk, it's Ubuntu11.10 – Michael Durrant Jun 19 '12 at 11:21
Check out the Ruby Version Manager. – Shawn J. Goff Jun 19 '12 at 11:56

1 Answer 1

up vote 3 down vote accepted

Have you tried installing the required version with gem?

$ gem install rake --version
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This worked. Furthermore I didn't need to 'remove' my 0.9.3.beta.1 I just installed and it's now my new version. Now I can rake spec without bundle exec ! – Michael Durrant Jun 19 '12 at 11:26

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