Modules use each other in cycle. Compilation error in Perl - perl

Question

There are 3 modules, so that they use each other by pattern
a -> b -> c -> a. I cannot compile such case.
For instance,
I get a compilation error
"Throw" is not exported by the LIB::Common::Utils module
Can't continue after import errors at /root/bin/ppm/LIB/Common/EnvConfigMgr.pm line 13
BEGIN failed--compilation aborted at /root/bin/ppm/LIB/Common/EnvConfigMgr.pm line 13.
Utils.pm
use Exporter qw(import);
our #EXPORT_OK = qw(
GetDirCheckSum
AreDirsEqual
onError
Throw);
use LIB::Common::Logger::Log;
Log.pm
use Log::Log4perl;
use LIB::Common::EnvConfigMgr qw/Expand/;
EnvConfigMgr.pm
use Exporter qw(import);
our #EXPORT = qw(TransformShellVars ExpandString InitSearchLocations);
our #EXPORT_OK = qw(Expand);
use LIB::Common::Utils qw/Throw/;
Why doesn't it get compiled and how to make it work?

Answer 1

You need to use require instead of use somewhere in the loop of dependencies so as to delay the binding. It is most convenient with a module that exports nothing, as otherwise you need to write an explicit import call
In your case LIB::Common::Logger::Log doesn't use Export, so putting
require LIB::Common::Logger::Log
into LIB/Common/Utils.pm fixes the problem
You have access to the code that isn't working, and you could have saved us a lot of time by simply showing the malfunctioning code. You ignored two comments asking for more information so I have set up these files
Note that this code does nothing: it simply compiles
LIB/Common/Utils.pm
package LIB::Common::Utils;
use Exporter 'import';
our #EXPORT_OK = qw/
GetDirCheckSum
AreDirsEqual
onError
Throw
/;
require LIB::Common::Logger::Log;
sub GetDirCheckSum { }
sub AreDirsEqual { }
sub onError { }
sub Throw { }
1;
LIB/Common/Logger/EnvConfigMgr.pm
package LIB::Common::EnvConfigMgr;
use Exporter 'import';
our #EXPORT = qw/ TransformShellVars ExpandString InitSearchLocations /;
our #EXPORT_OK = 'Expand';
use LIB::Common::Utils 'Throw';
sub TransformShellVars { }
sub ExpandString { }
sub InitSearchLocations { }
sub Expand { }
1;
LIB/Common/Logger/Log.pm
package LIB::Common::Logger::Log;
use Log::Log4perl;
use LIB::Common::EnvConfigMgr 'Expand';
1;
main.pl
use strict;
use warnings 'all';
use FindBin;
use lib $FindBin::Bin;
use LIB::Common::Utils;