Hello! Why aren't authoritative records loaded in the console? They loaded through the browser without errors. Koha 22.11.04 root@koha3:/usr/share/koha/bin/migration_tools# perl bulkmarcimport.pl -a -file /home/ias/person.t.mrc -c UNIMARC .Use of uninitialized value in join or string at /usr/share/perl5/MARC/Field.pm line 696, <GEN3> line 1. .Use of uninitialized value in join or string at /usr/share/perl5/MARC/Field.pm line 696, <GEN3> line 2. .Use of uninitialized value in join or string at /usr/share/perl5/MARC/Field.pm line 696, <GEN3> line 3. Good Luck! Igor A. Sychev Tomsk Polytechnic University https://lib.tpu.ru