I downloaded and installed InstantRails 2.0 according to instructions on pages 32-34. The installation appeared to be all right. However whenever I try to run “gem update” I get a message
ERROR: While executing gem … (Gem::RemoteSourceException) HTTP Response 301 fetching http://gems.rubyforge.org/yaml
Apparently yaml file was moved. I guessing its probable url is now http://rubygems.org/yaml but I can’t figure out what/how to change in the existing 2.0 installation to be able to update it to 2.2 or 2.3.
By the way, attempts to run “gem install rubygems-update” lead to the same error message.