The version currently on hackage does not build because it's missing a test file:
Preprocessing test suite 'TestsHTF' for argparser-0.3.4...
tests/TestsHTF.hs:12:26:
Could not find module ‘System.Console.ArgParser.FullTest’
Perhaps you meant
System.Console.ArgParser.Format (from argparser-0.3.4@argpa_Gge5FY4C8wZ93pOdW4HrZE)
System.Console.ArgParser.BaseType (from argparser-0.3.4@argpa_Gge5FY4C8wZ93pOdW4HrZE)
System.Console.ArgParser.Params (from argparser-0.3.4@argpa_Gge5FY4C8wZ93pOdW4HrZE)
The version currently on hackage does not build because it's missing a test file: