For the importer in question.
phpbb_3_import
Requires somewhere around:
Apache/2.2.14 (Win32) DAV/2 mod_ssl/2.2.14 OpenSSL/0.9.8l mod_autoindex_color PHP/5.3.1 mod_apreq2-20090110/2.7.1 mod_perl/2.0.4 Perl/v5.10.1
MySQL client version: 5.1.41
Which is xampp-win32-1.7.3 for what I used.
IT IS NOT JUST THE PHP VERSION.
.
I had success with importing first to ubb 7.5.7.
However I found that phpbb allows forums to display without a designated category..
For those forums they did not import correctly..
I would suggest to edit the cp in phpbb and add categories for all the existing forums missing a category prior to running the import.
Also existing admin in phpbb was not created as admin on the member import.
Had to manually toggle to admin in the users table
There were other issues but they were minor in nature.
Last edited by Ruben; 03/02/2021 12:58 PM. Reason: Updated Comment