Please namespace your classes

[kkuchta]

Ruby is weird about constants. If your gem defines class Foo and mine defines SomeNameSpace::Foo, yours will get loaded and mine won't. You'll get the nice warning warning: toplevel constant Foo referenced by SomeNameSpace::Foo, and accessing SomeNameSpace::Foo will actually just get Foo.

In this case, I have an existing class Pickups::TimeSlot which conflicts with your top-level TimeSlot class. If you add a namespace to your TimeSlot, though, it should resolve the issue.