The error message is wrong (in version 5.6.1), but the feature works perfectly well if you call a method that really exists: 
perl -e 'package Pkg; sub Meth{print "hello\n"} package main; Lie->Pkg
+::Meth'

[download]
hello

In reply to Re^2: $object->UnrelatedPackage::some_subroutine() (not for me) by itub
in thread $object->UnrelatedPackage::some_subroutine() by Thilosophy

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