Ruby gem's executable "setup" conflicts with another gem

The gem in question is GenericApp (https://github.com/jhsu802701/generic_app/).

When I enter the command “gem install generic_app”, I get the following error message:
generic_app’s executable “setup” conflicts with string_in_file

string_in_file is a gem used by generic_app. But for the life of me, I cannot see how it can possibly conflict with the bin/setup script in my GenericApp project. Can anyone shed some light on this?