Could the inter-dependence on the modules to one another be causing this

This is all a guess, but...

Yes. Specifically, the subs you're trying to import (and the @EXPORT list, and I think &import itself for that matter) don't actually exist when import is called. Since use effectively runs inside a BEGIN block, the use Register line interrupts compilation of MyUserProfile to execute Register.pm. Then while compiling Register, the use MyUserProfile line will first attempt to require MyUserProfile, which is a no-op since it is already in %INC even though it hasn't finished compiling, and then it will import MyUserProfile, which is also a no-op since nothing in that package is defined yet (except what was exported to it by earlier use statements).

By the way, that's for the case where a script tries to use MyUserProfile without first doing a use Register. It looks like there are similar problems (with different functions) going the other way. Hence it "seems to happen in parts of the code that I'm NOT working on".

In reply to Re^3: error for undefined function that's been imported by Bob9000
in thread error for undefined function that's been imported by argv

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.