about sqlite install

Hell:
I have the rails 2.1 installed and made an app to run it locally.But
when inputting the url,the browser show the following errors:
  Could not find the file: sqlite3.dll
  This error occurred while loading the following files:
   sqlite3/driver/dl/driver
   sqlite3/driver/dl/api

I have installed the sqlite3 through the command:
gem install sqlite3-ruby

The command line told me this task finished.So why got the above error
and how to manage it?

I have resoved this problem.

Guo Yangguang wrote:

I have resoved this problem.

Hello,
   What was the resolution to the problem?

thank you,
Jason

Jason White wrote:

Guo Yangguang wrote:

I have resoved this problem.

Hello,
   What was the resolution to the problem?

thank you,
Jason

Same here, how did he resolve?