Apologies for my ignorance here, but which one of the posts provided the solution in that thread?

I am still getting the error:
fatal undef error: GT::Template::Parser (14137): Unable to open template file './templates/./templates/login.html'. Reason: File does not exist. at GT/Template.pm line 300.

I have tried all of the solutions suggested as well as I can, and all of them simply lead to further erros.

I presume that the module is actually broken, since so many people are companiing about it?

Can someone please provide a definitive answer to this problem?