When I try to install ZenTest:
gem install ZenTest
I get the following error:
Invalid gemspec in [C:/RailsInstaller/Ruby1.9.3/lib/ruby/gems/1.9.1/specifications/ZenTest-4.8.4.gemspec]: Illformed requirement ["< 2.1, >= 1.8"]
I tried cleaning up the gems and removing the ZenTest to no avail.
What's wrong?
I've just spoken with Ryan Davis, the author of ZenTest. He tells me that this is due to a bug in RubyGems and they're preparing a release that fixes it.
In the meantime, downgrade to 4.8.3.