Issue with rake db:migrate command

In chapter five of the book Build Your Own Ruby on Rails Applications,
when I entered the rake db:migrate command in the Ruby console, I got
the following message back:

Warning require_gem is obsolete. Use gem instead.

What does this mean, and what should I do? Was the rake db:migrate
command executed? If I want to update require_gem, what do I need to do?

Thanks in advance.

This is not really a Rails problem, more an issue with the new gem
package.
You can safely ignore it, but if you want to get rid of the error then
edit the config/boot.rb file and change line 29 (I think) from
“require_gem …” to just “gem”
This has already been fixed in Rails development (edge)

On Mar 9, 1:14 pm, Paul D. [email protected]