Can't locate after Debian upgrade to stretch

UPDATE: The error mysteriously disappeared.

After upgrading Debian from jessie to stretch, everything is working fine except virtualmin. I get this error:

Can't locate in @INC (you may need to install the lib module) (@INC contains: /usr/share/webmin /etc/perl /usr/local/lib/x86_64-linux-gnu/perl/5.20.2 /usr/local/share/perl/5.20.2 /usr/lib/x86_64-linux-gnu/perl5/5.20 /usr/share/perl5 /usr/lib/x86_64-linux-gnu/perl/5.20 /usr/share/perl/5.20 /usr/local/lib/site_perl . ..) at /usr/share/webmin/authentic-theme/ line 10. BEGIN failed--compilation aborted at /usr/share/webmin/authentic-theme/ line 10. Compilation failed in require at /usr/share/webmin/authentic-theme/index.cgi line 10.```

It seems rather strange that I'd have to install the lib module.


It’s quite possible that the library was lost during the distro upgrade. Because Virtualmin was installed prior to upgrading, it also actually makes sense that if it was lost during the transition or the version installed is not compatible that Virtualmin would complain about it’s absence.