Redmine

Have same issue:

Migrating users.................................................
rake aborted!
Mysql::Error: Duplicate entry '1-1' for key 1: INSERT INTO `projects_trackers` (`project_id`, `tracker_id`) VALUES (1, 1)

Any solution ?

There are requirements, see RedmineMigrate.

MantisBT 1.2.2
Redmine 1.1.2.devel

Steps:
1. Create Clean Redmine DB
2. Load Default data in Redmine DB
3. Run Migration Script

Valeri Mytinski
try our solution:

1. Create Clean Redmine DB
2. Load Default data in Redmine DB

3.
mysql -uroot -p'*********'
ALTER TABLE `redmine`.`projects_trackers` DROP INDEX `projects_trackers_unique`;
QUIT;

4. Run Migration Script

Currently, Project.trackers seems to be initialized when created. (see app/models/project.rb rev.4460)

Try edit lib/task/migrate_from_mantis.rake like this:

p.enabled_module_names = ['issue_tracking', 'news', 'wiki']
p.trackers.clear # insert this line !
p.trackers << TRACKER_BUG
p.trackers << TRACKER_FEATURE

here is my (very ugly lol) script to migrate Mantis 1.2.2 to Redmine trunk(rev.5856).

the last script has a serious bug. it can not handle the date field correctly.
here is modified version. sorry for my ugly work X-(

For me the "alter table" solution works.
Before try the migrate script i delete all rows in the projects table
Mantis 1.0.5 -> BitNami Redmine Stack 1.2.0-0

To Enogu KUROI :
thanks for your script.

but there's a bug in it, causing flowing exception

undefined local variable or method `cname' for MantisMigrate:Module

Here's the fixed version.