# Getting an error when trying to create a new application

**URL:** <https://www.ruby-forum.com/t/getting-an-error-when-trying-to-create-a-new-application/137115>\
**Category:** Rails\
**Created:** [May 9, 2008, 2:13am UTC](https://www.ruby-forum.com/t/getting-an-error-when-trying-to-create-a-new-application/137115 "2008-05-09T02:13:48Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![nbafan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8e8cbc/32.png) [@nbafan](https://www.ruby-forum.com/u/nbafan)\
**Post date:** [May 9, 2008, 2:13am UTC](https://www.ruby-forum.com/t/getting-an-error-when-trying-to-create-a-new-application/137115/1 "2008-05-09T02:13:48Z")

</div>

I’m new to Ruby/Ruby on Rails. I’m trying to create an application and  
am getting this error:

C:\InstantRails\rails\_apps\>rails demo  
C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:379:in  
`report_activate_ error': RubyGem version error: activesupport(2.0.2 not = 2.0.2.9216) (Gem::LoadE rror) from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:311:in`act  
ivate’  
from  
C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:337:in `act ivate' from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:336:in`eac  
h’  
from  
C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:336:in `act ivate' from C:/InstantRails/ruby/lib/ruby/site_ruby/1.8/rubygems.rb:65:in`acti  
ve\_gem\_with\_options’  
from  
C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:50:in `gem’

```
    from C:/InstantRails/ruby/bin/rails:18

```

How do I fix this?

---

<div class="post-metadata">

**Author:** ![nbafan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8e8cbc/32.png) [@nbafan](https://www.ruby-forum.com/u/nbafan)\
**Post date:** [May 9, 2008, 4:27am UTC](https://www.ruby-forum.com/t/getting-an-error-when-trying-to-create-a-new-application/137115/2 "2008-05-09T04:27:37Z")

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You’re missing activesupport, try:  
gem install rails

again (I rememember a while back needing to do this twice to make sure  
activesupport  
was pulled in), otherwise:  
gem install activesupport

Cheers,  
James

On Fri, May 9, 2008 at 9:43 AM, La Ll [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid)

---

<div class="post-metadata">

**Author:** ![nbafan](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/n/8e8cbc/32.png) [@nbafan](https://www.ruby-forum.com/u/nbafan)\
**Post date:** [May 9, 2008, 9:08am UTC](https://www.ruby-forum.com/t/getting-an-error-when-trying-to-create-a-new-application/137115/3 "2008-05-09T09:08:55Z")

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On May 9, 1:13 am, La Ll [removed\_email\_address@domain.invalid](mailto:removed_email_address@domain.invalid) wrote:

> I’m new to Ruby/Ruby on Rails. I’m trying to create an application and  
> am getting this error:
> 
> C:\InstantRails\rails\_apps\>rails demo  
> C:/InstantRails/ruby/lib/ruby/site\_ruby/1.8/rubygems.rb:379:in  
> `report\_activate\_  
> error’: RubyGem version error: activesupport(2.0.2 not = 2.0.2.9216)  
> (Gem::LoadE  
> rror)

You’ve accidentally (probably due to boneheaded aptana) installed edge  
rails gems. Remove gems with versions like 2.0.2.9216, and then run  
gem sources -r [http://gems.rubyonrails.org](http://gems.rubyonrails.org) to make sure you don’t get  
them again.

Fred