# Error in rails at startup

**URL:** <https://www.ruby-forum.com/t/error-in-rails-at-startup/128761>\
**Category:** Rails\
**Created:** [February 11, 2008, 11:35am UTC](https://www.ruby-forum.com/t/error-in-rails-at-startup/128761 "2008-02-11T11:35:48Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![revans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@revans](https://www.ruby-forum.com/u/revans)\
**Post date:** [February 11, 2008, 11:35am UTC](https://www.ruby-forum.com/t/error-in-rails-at-startup/128761/1 "2008-02-11T11:35:48Z")

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Hi everybody.  
I met a strange situation when I begin to use rails.  
I install the ruby 1.86, rails 2.0.2, and update the gem to 1.0.1  
then I install mongrel.  
Just create the rails project and type  
“ruby script/generate controller Greeting”  
then edit the file greeting\_controller.rb add several lines  
def index  
render :text =\> “

# Welcome to your first Rails application

# ” end

Now I get in this url. It says  
MissingSourceFile (no such file to load – sqlite3):  
E:/Program  
Files/Ruby/lib/ruby/site\_ruby/1.8/rubygems/custom\_require.rb:27:in  
`gem_original_require' E:/Program Files/Ruby/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:27:in`require’  
E:/Program Files/Ruby/lib/ruby/gems/1.8/gems/activesupport-  
2.0.2/lib/active\_support/dependencies.rb:496:in `require’

and so on.  
Who can tell me how to fix it .Thanks

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<div class="post-metadata">

**Author:** ![revans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@revans](https://www.ruby-forum.com/u/revans)\
**Post date:** [February 11, 2008, 11:47am UTC](https://www.ruby-forum.com/t/error-in-rails-at-startup/128761/2 "2008-02-11T11:47:44Z")

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your rails database.yml is configured to use sqlite3,  
most likely you installed mysql (or not, or nothing)

in config/database.yml  
this:

development:  
adapter: mysql  
encoding: utf8  
database: myapp\_dev  
username: root  
password:  
test:  
adapter: mysql  
encoding: utf8  
database: myapp\_tesst  
username: root  
password:  
production:  
adapter: mysql  
encoding: utf8  
database: myapp\_prod  
username:  
password:

would be correct for mysql

---

<div class="post-metadata">

**Author:** ![revans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@revans](https://www.ruby-forum.com/u/revans)\
**Post date:** [February 11, 2008, 12:15pm UTC](https://www.ruby-forum.com/t/error-in-rails-at-startup/128761/3 "2008-02-11T12:15:25Z")

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OMG, it works!  
I am so appreciative of this and can’t hold myself!

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<div class="post-metadata">

**Author:** ![revans](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/f4b2a3/32.png) [@revans](https://www.ruby-forum.com/u/revans)\
**Post date:** [February 11, 2008, 1:14pm UTC](https://www.ruby-forum.com/t/error-in-rails-at-startup/128761/4 "2008-02-11T13:14:44Z")

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> **[cannot load such file -- sqlite3/sqlite3\_native (LoadError) on ruby on rails](https://www.google.com/search?ie=UTF-8&oe=UTF-8&sourceid=navclient&gfns=1&q=no%2Bsuch%2Bfile%2Bto%2Bload%2Bsqlite3)**
>
> When I try to setup basic installation and initiation of server using Rails 4.0.0 on Ruby 2.0.0, I'm facing the following error message.
> 
> /usr/local/lib/ruby/gems/2.0.0/gems/sqlite3-1.3.7/lib/sqlit...

[http://groups.google.com/group/rubyonrails-talk/search?group=rubyonrails-talk&q=no+such+file+to+load+sqlite3&qt\_g=Search+this+group](http://groups.google.com/group/rubyonrails-talk/search?group=rubyonrails-talk&q=no+such+file+to+load+sqlite3&qt_g=Search+this+group)

Install sqlite3.