gems don't get found

Hy!

I have the following problem;

In config/environment.rb i have config.gem 'wysihat-engine' (or anny other gem)

When i "rake gems:install" (in /home/user/rails_apps/res-test) gem install wysihat-engine Successfully installed wysihat-engine-0.1.13 1 gem installed Installing ri documentation for wysihat-engine-0.1.13... Installing RDoc documentation for wysihat-engine-0.1.13...

But app won't start;