Hi, I find that Template::Plugin::Math is in Template v2.18, but it is missing in v2.19. that would cause problems if I tried something like that: use inc::Module::Install; requires 'Template'; requires 'Template::Plugin::Math'; because Template is trying to install v2.19, but later, Math is trying to install v2.18. mm, how to avoid this situation? Regards, -- Fayland Lam // http://www.fayland.org/