issue with 4.2.10 to 4.4.1 upgrade

Hello,

I had no apparent issues with upgrade and db upgrade all that went w/o
errors.

I went over the entire RT_Config.,pm file compared to my v 4.2.10 file and
made the necessary changes.

When i try and login i get:


[17419] [Wed Nov 30 13:53:27 2016] [error]: Undefined subroutine
&RT::Interface::Web::RequestENV called at
/opt/rt4/sbin/../lib/RT/CurrentUser.pm line 226.

Stack:
  [/opt/rt4/sbin/../lib/RT/CurrentUser.pm:226]
  [/opt/rt4/sbin/../lib/RT/CurrentUser.pm:245]
  [/opt/rt4/sbin/../local/lib/RT/Interface/Web.pm:2037]
  [/opt/rt4/share/html/Elements/Login:49]
  [/opt/rt4/share/html/NoAuth/Login.html:56]
  [/opt/rt4/sbin/../local/lib/RT/Interface/Web.pm:351]
  [/opt/rt4/share/html/autohandler:53]
(/opt/rt4/sbin/../lib/RT/Interface/Web/Handler.pm:208)

line 226 is about Language Handle, which references
* RT::Interface::Web::RequestENV*

*=head2 LanguageHandle*

*...*
*        } elsif ($HTML::Mason::Commands::m) {*
*            # Detect from the HTTP header.*
*            require I18N::LangTags::Detect;*
*            push @_, I18N::LangTags::Detect->http_accept_langs(*
*                RT::Interface::Web::RequestENV('HTTP_ACCEPT_LANGUAGE')*
*            );*
*        }*
...


I verified my server doesnt seem to respond properly for RT module

# perl -e "use RT::Interface::Web::RequestENV"
Can't locate RT/Interface/Web/RequestENV.pm in @INC (@INC contains:
/etc/perl /usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2
/usr/lib/perl5 /usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14
/usr/local/lib/site_perl .) at -e line 1.
BEGIN failed--compilation aborted at -e line 1.

# perl -e "use RT::CurrentUser"
Can't locate RT/CurrentUser.pm in @INC (@INC contains: /etc/perl
/usr/local/lib/perl/5.14.2 /usr/local/share/perl/5.14.2 /usr/lib/perl5
/usr/share/perl5 /usr/lib/perl/5.14 /usr/share/perl/5.14
/usr/local/lib/site_perl .) at -e line 1.
BEGIN failed--compilation aborted at -e line 1.

I figure this has to be part of the issue. I am at a loss as to what to do,
thanks for any help

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