# Problems installing acts\_as\_list plugin

**URL:** <https://www.ruby-forum.com/t/problems-installing-acts-as-list-plugin/161091>\
**Category:** Rails\
**Created:** [February 23, 2009, 10:48am UTC](https://www.ruby-forum.com/t/problems-installing-acts-as-list-plugin/161091 "2009-02-23T10:48:11Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![liberte](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9e8a1a/32.png) [@liberte](https://www.ruby-forum.com/u/liberte)\
**Post date:** [February 23, 2009, 10:48am UTC](https://www.ruby-forum.com/t/problems-installing-acts-as-list-plugin/161091/1 "2009-02-23T10:48:11Z")

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Hi There,

i’m using Ruby 1.8.6 on Rails 2.2.2 on a Mac OSX 10.5.4 and i’m trying  
to use acts\_as\_list in a project.

While testing with rake test:units i got an “[…] `method_missing': undefined method `acts\_as\_list’ […]” Error.

After googeling a while i changed into the project directory and tried  
ruby script/plugin install  
[http://dev.rubyonrails.org/browser/plugins/acts\_as\_list](http://dev.rubyonrails.org/browser/plugins/acts_as_list)  
getting  
"Plugin not found:  
["[http://dev.rubyonrails.org/browser/plugins/acts\_as\_list"]"](http://dev.rubyonrails.org/browser/plugins/acts_as_list%22%5D%22)  
as response.  
The 2nd time i ran (getting desperate makes you iterate non-successfull  
processes 😉 the line, i got “already installed: acts\_as\_list”  
When i retry with --force, i get the “not found” message again.

I tried  
ruby script/plugin install git://github.com/rails/acts\_as\_list.git  
as well, got no reply, looked like success. But the unit test still  
failed. Running the git-install again lead to the “already installed”  
message.

I’m a bit confused, asking me (an now you) the following questions:

1.) How do i see which plugins are installed?  
2.) Do i have to “activate” an installed plugin within a project  
somehow?  
3.) Do i install plugins generally or just for the current project i’m  
in?  
4.) How can i get acts\_as\_list (and later acts\_as\_tree) running?

Any Hints are appreciated, Thanx for your help!

D.

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<div class="post-metadata">

**Author:** ![liberte](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/l/9e8a1a/32.png) [@liberte](https://www.ruby-forum.com/u/liberte)\
**Post date:** [February 23, 2009, 11:17am UTC](https://www.ruby-forum.com/t/problems-installing-acts-as-list-plugin/161091/2 "2009-02-23T11:17:30Z")

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On 23 Feb 2009, at 09:48, Daniel L. wrote:

> I tried  
> ruby script/plugin install git://github.com/rails/acts\_as\_list.git  
> as well, got no reply, looked like success. But the unit test still  
> failed. Running the git-install again lead to the “already installed”  
> message.
> 
> I’m a bit confused, asking me (an now you) the following questions:
> 
> 1.) How do i see which plugins are installed?

See what’s in vendor/plugins

> 2.) Do i have to “activate” an installed plugin within a project  
> somehow?

some plugins have an install.rb to run (acts\_as\_list isn’t one of them)

> 3.) Do i install plugins generally or just for the current project i’m  
> in?  
> just for a project