Redmine

I have the same issue:
redmine 1.0.4
ruby 1.8.7
rails 2.3.5
passenger 2.2.14
apache 2.2.14
freebsd 7.2

Debug:

Processing RepositoriesController#show (for 10.x.x.x at 2010-12-14 10:23:56) [GET]
  Parameters: {"action"=>"show", "id"=>"svntest", "controller"=>"repositories"}
  SQL (0.5ms)   SELECT max(`settings`.updated_on) AS max_updated_on FROM `settings`
  User Load (0.5ms)   SELECT * FROM `users` WHERE (`users`.`id` = 130) AND (users.status = 1) AND ( (`users`.`type` = 'User' OR `users`.`type` = 'AnonymousUser' ) )
  Project Load (0.7ms)   SELECT * FROM `projects` WHERE (`projects`.`identifier` = 'svntest') LIMIT 1
  Repository Load (0.4ms)   SELECT * FROM `repositories` WHERE (`repositories`.project_id = 54) LIMIT 1
Shelling out: svn info --xml 'http://mysourcesrv/subdir/branches/Release/WebApps/Z_RedmineIntegration//' --username xxxx --password xxxx --no-auth-cache --non-interactive
  SQL (0.4ms)   BEGIN
  SQL (0.3ms)   COMMIT
  EnabledModule Load (0.6ms)   SELECT name FROM `enabled_modules` WHERE (`enabled_modules`.project_id = 54)
  SQL (0.2ms)   BEGIN
  SQL (0.2ms)   COMMIT
Shelling out: svn list --xml 'http://mysourcesrv/subdir/branches/Release/WebApps/Z_RedmineIntegration//'@HEAD --username xxxx --password xxxx --no-auth-cache --non-interactive
Error parsing svn output: undefined method `name' for nil:NilClass
Output was:

Rendering template within layouts/base
  Project Load (1.0ms)   SELECT `projects`.* FROM `projects` INNER JOIN `members` ON `projects`.id = `members`.project_id WHERE ((`members`.user_id = 130) AND ((projects.status=1)))
  Project Load (0.8ms)   SELECT * FROM `projects` WHERE (projects.`lft` <= 203 AND projects.`rgt` >= 204) ORDER BY `lft` LIMIT 1
  CACHE (0.0ms)   SELECT * FROM `projects` WHERE (projects.`lft` <= 203 AND projects.`rgt` >= 204) ORDER BY `lft` LIMIT 1
  SQL (1.2ms)   SELECT count(DISTINCT `versions`.id) AS count_all FROM `versions` LEFT OUTER JOIN `projects` ON `projects`.id = `versions`.project_id WHERE (projects.id = 54 OR (projects.status = 1 AND ( versions.sharing = 'system' OR (projects.lft >= 203 AND projects.rgt <= 204 AND versions.sharing = 'tree') OR (projects.lft < 203 AND projects.rgt > 204 AND versions.sharing IN ('hierarchy', 'descendants')) OR (projects.lft > 203 AND projects.rgt < 204 AND versions.sharing = 'hierarchy'))))
  Wiki Load (0.6ms)   SELECT * FROM `wikis` WHERE (`wikis`.project_id = 54) LIMIT 1
  SQL (0.4ms)   SELECT count(*) AS count_all FROM `boards` WHERE (`boards`.project_id = 54)
Completed in 197ms (View: 77, DB: 8) | 500 Internal Server Error [https://redmine-upgraded.myco.net/projects/svntest/repository]

Maria: What is your setup? debian/freebsd/redhat?

Do you have subversion installed on the system you are running Redmine on?

Hi, my setup is redhat 4.
I update my subversion to 1.5.5 and it works correctly now.

I hope you have luck.
Maria

Just some info for anyone trying to get this to work. I found out I needed to modify {your-web-dir}/redmine/lib/redmine/scm/adapters/subversion_adapter.rb and change

# SVN executable name
SVN_BIN = "svn" 

# SVN executable name
SVN_BIN = "/usr/local/bin/svn" 

Depending on your *nix flavor this will be the full path to your svn binary.

Additional note:
Be careful watching only debug output when troubleshooting svn problems. It is not very verbose. Try the actual svn shell out from debug on the command line as the production.log file will not show authentication errors.

Reference:
http://www.redmine.org/boards/2/topics/11896