How to migrate data from Mantis to Redmine in 2022?
I am trying to migrate data from Mantis to Redmine by following this instruction[[https://www.redmine.org/projects/redmine/wiki/RedmineMigrate#Mantis]] and it is "Obsolete: Does not work". Does there any solution work in 2022?
About your application's environment
Rails version 5.2.6
Ruby version 2.7.0-p0 (aarch64-linux-gnu)
RubyGems version 3.1.2
Rack version 2.2.3
Application root /somewhere/redmine-4.2.3
Database adapter postgresql
Database schema version 20200826153402
I did a migration from Mantis to Redmine a couple of years ago.
As I can remember, what I did was pulling an old Redmine version (was something around 2.5 or 2.6), did the migration there and updated the Redmine to the latest version.
The result of the migration was not very pleasing as there where deleted issues which messed up the issue numbers. Therefore many of the old issues have got a new issue number in Redmine which was the deal breaker back then.
Thanks. I did it on the latest version but the attached files are not properly imported.