no such file to load -- sqlite3

I followed a tutorial on lynda.com to build Hello World app on
Windows.

I got an error msg as follow when I loaded http://localhost:3000/say/hello

olivia wrote:

I followed a tutorial on lynda.com to build Hello World app on
Windows.

I got an error msg as follow when I loaded
http://localhost:3000/say/hello

-----------------------------------------------------------
MissingSourceFile in SayController#hello
no such file to load -- sqlite3
-----------------------------------------------------------

I went to download sqlite3 but don't know where to install sqlite3.
Can someone help please?

Thanks!

That's a generic error for missing gems. DO this,

gem install sqlite3-ruby

or

sudo gem install sqlite3-ruby

I don't get it. Is it a code I put it somewhere? Help again!

If I am missing gems, how do I install it?