Met with an error immediately. Wasn't expecting it to work anyway.
I guess i have to hire someone to do the conversion.
I think phpbb team needs to address this issue. There are no converters available at all for any of the new versions of any forum software (IPB, mybb, xf etc.). I don't imagine it will be time consuming for phpbb team since they know the db structure of phpbb well and knowing other forum software shouldn't take too long, at least update or release for the most popular forum software such as xf, ipb.
I have been searching all day trying to find a conversion path that i can use, ipb offers xf to ipb conversion but there is no ipb to phpbb. Same way with other forum software, there is no way to come back to phpbb from those because every converter on phpbb is outdated.
I have a programming background and i don't understand why there isn't one available since it's not hard but just boring to do and a bit time-consuming. If phpbb was my project, i would keep the converters up to date because people are wanting to come back to my software.
I really think it will benefit a lot of people. Just update one of the converter, IPB is pretty spot on with their converters so if there is a ipb to phpbb converter, a lot of people could convert to ipb then back to phpbb.
I converted from phpbb to xenforo a few months back and it was so smooth and easy, now i want to come back and it seems impossible without wasting a lot of money.