Redmine

You have to set up your wiki start page in the settings of your project.
This should help, but unfortunately #3910 issue is still not resolved and cause a lot of work :/

You have to set up your wiki start page in the settings of your project.

Setup wiki start page in the settings not help. Pages are not accessible even on direct transition.

This should help, but unfortunately #3910 issue is still not resolved and cause a lot of work :/

No, it's other problem, for us not critical.

I have this same problem with v0.9.2

All seems to go smooth and no errors, but wiki ain't working.

Okey, I find out problem.

For some reason when you migrate trac, when import process create new project, it also seems to create new default wiki. Then wiki with that project id already exists, so import will create new wiki, with new project id number.

So I got my wiki working just by editing database by hand

UPDATE `redmine`.`wiki_pages` SET `wiki_id` = '2' WHERE `wiki_id` = 3;

Hope this will helps to nail issue.

I had the same issue and I also realized that there are two wikis for the new project in the database:

mysql> select * from wikis where project_id=15;

+----+------------+------------+--------+
| id | project_id | start_page | status |
+----+------------+------------+--------+
| 11 |         15 | Wiki       |      1 | 
| 12 |         15 | WikiStart  |      1 | 
+----+------------+------------+--------+

I solved this problem in a different way. I simply deleted the first wiki of the new project in the "wikis" table. Since there are no pages in that wiki that's all you need to do.

delete from wikis where id=11;

After I dropped the wiki, the pages migrated from trac can be accessed without problems.

My Ruby is a bit rudimentary. But I wonder how r3517's patch fixes things...

        @target_project = project.new_record? ? nil : project
        @target_project.reload

AFAICS, @target_project will be set to nil if new_record? yields true. Then, you're trying to call the reload method on a nil object...

You have a nil object when you didn't expect it!
You might have expected an instance of ActiveRecord::Base.
The error occurred while evaluating nil.reload
/usr/share/redmine/lib/tasks/migrate_from_trac.rake:685:in `target_project_identifier'
/usr/share/redmine/lib/tasks/migrate_from_trac.rake:759

Is it possible, that it's only supposed to work if the name of the trac project matches the name of the redmine project? I mean, it works this way currently. Actually, it only works if one uses all lower case letters for Target project identifier. Otherwise, it's "Unable to create a project with identifier 'XXX'!"