Hello perlpipe,

When using a tag in a use directive, you have to prefix it with a colon:

use tmod qw( :tag_v0 );
#            ^
[download]

See Exporter#Specialised-Import-Lists.

BTW, the Perl convention is to capitalise the first letter of a module name unless the module is functioning as a pragma. See perlmod#Perl-Modules.

Hope that helps,