v0.20.0_1 stopped working after upgrading to FreeBSD 13 and upgrading packages to latest quarterly in turn.
$ sudo /usr/local/etc/rc.d/znapzend start
Can't locate Mojo/Base.pm in @INC (you may need to install the Mojo::Base module) (@INC contains: /usr/local/lib/perl5/site_perl /usr/local/lib/perl5/site_perl/mach/5.32 /usr/local/lib/perl5/5.32/mach /usr/local/lib/perl5/5.32) at /usr/local/lib/perl5/site_perl/ZnapZend.pm line 3.
BEGIN failed--compilation aborted at /usr/local/lib/perl5/site_perl/ZnapZend.pm line 3.
Compilation failed in require at /usr/local/bin/znapzend line 9.
BEGIN failed--compilation aborted at /usr/local/bin/znapzend line 9.
/usr/local/etc/rc.d/znapzend: WARNING: failed to start znapzend
$ pkg info znapzend
Name : znapzend
Version : 0.20.0_1
Installed on : Mon Apr 26 07:24:11 2021 CEST
Origin : sysutils/znapzend
Architecture : FreeBSD:13:*
Prefix : /usr/local
Categories : sysutils
Licenses : GPLv3+
Maintainer : olgeni@FreeBSD.org
WWW : https://www.znapzend.org/
Comment : ZFS-centric backup tool
repo_type : binary
repository : FreeBSD
Flat size : 209KiB
ZnapZend is a ZFS centric backup tool.
It relies on snapshot, send and recieve to do its work.
It has the built-in ability to manage both local
snapshots as well as remote copies by thinning them out
as time progresses.
The ZnapZend configuration is stored as properties in
the ZFS filesystem itself.
I also created this at https://github.com/oetiker/znapzend/issues/544 before I noticed that there already have been fixes to the port due to Mojo issues.
$ pkg info | grep Mojo
p5-Mojo-IOLoop-Delay-8.76 Flow-control helpers for Mojo::Promise
p5-Mojo-IOLoop-ForkCall-0.21 Run blocking functions asynchronously by forking
p5-Mojolicious-9.15 High-level MVC web framework written in Perl
Found problem: Mojo package was not correctly installed for whatever reason, after reinstalling all dependencies znapzend is starting now.