No, this is not a real Sinatra error :).
This is the personal homepage of Elad Meidar, a web developer and an entrepreneur specializing in Ruby on Rails. I hang around in Israel, and i am currently having the best time of my life over at Fiverr.com
I am a proud member of RailsBridge, Helping new Rails developers get into our world and also contributed a few Patches to the Ruby on Rails core.
After a recent upgrade to a newer rails version the gem package manager seems to be broken. Everytime you try to use gem install gem_name, you get the following error:
ERROR: While executing gem … (Gem::GemNotFoundException)
Deleting the cached files as suggested in other posts results in the error:
ERROR: While executing gem … (ArgumentError)
As suggested, you need to do:
gem install rubygems-update<br />update_rubygems
which should be updating the gem version to the latest one, ie 1.3.0
You're seeing this error because I think it is funny.