"could not find valid gem'. This is the response I am getting when inputting 'gem install --local rubygems-update-2.2.3.gem' into the command prompt after saving rubygems update. Anyone have insight on what I am doing wrong?
Which installfest are you referring to? A link to the step that is failing would be helpful. Also please provide more info on what you are trying to do. If you are trying to install Rubygems, this page might help.