Could not load the bundler gem

my server after getting restarted is throwing this error :

Caused by: org.jruby.exceptions.RaiseException: (RuntimeError) Could not
load the bundler gem. Install it with `gem install bundler`.
Apr 7, 2011 10:32:15 AM org.apache.catalina.core.ApplicationContext log
SEVERE: Application Error

Can anyone suggest the reason for this?


Is the bundler gem installed on the server? It may have been removed and you were not aware of it.