FAQ » History » Version 37

Mischa The Evil, 2008-12-05 15:52
Added FAQ-item: "Wrong time calculations..."

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h1. Frequently Asked Questions
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{{TOC}}
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h2. Installing and Running Redmine
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h3. Does Redmine work with Rails 2.1.x?
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Redmine devel r1623 and above is compatible with Rails 2.1.
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But Redmine 0.7.x releases are not. Please freeze your rails to 2.0.2 version:
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<pre>$ rake rails:freeze:edge TAG=rel_2-0-2</pre>
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h3. When I start the application, I get this error "in 'gem_original_require': no such file to load -- initializer (LoadError)"
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Make sure "Ruby on Rails":http://rubyonrails.org/ is properly installed on your machine.
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h3. When I start the application, I get this error message: "cannot connect to mysql: No such file or directory - /tmp/mysql.sock"
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You have to specify the socket location in @config/database.yml@.
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See http://dev.rubyonrails.org/ticket/200.
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h3. The application seems to work fine but some pages (eg. login form) have no content.
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You're running Rails 1.1.x but Redmine requires 1.2.6.
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Upgrade Rails (if you're using gem package system, run the command @gem update@ as root/administrator).
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h3. The application freeze after a long time of inactivity.
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There's a bug in ruby/mysql adapter < 2.7.3 that leads to loose the database connection. Please update your adapter.
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You can see thread at: http://rubyforge.org/forum/message.php?msg_id=25951.
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h3. I upgraded Rails to 2.0, but Redmine doesn't work anymore!
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Redmine 0.6.3 is Rails 2.0 compatible, but prior versions are not.
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The best solution is to upgrade Redmine to the latest version. But if you really want to use Redmine 0.6.0 on a box running Rails 2.0, please freeze your Rails version for Redmine (it won't affect your other Rails applications) by typing this command from your Redmine directory:
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  rake rails:freeze:edge TAG=rel_1-2-6
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Don't forget to restart your server.
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h3. Why does Redmine use http links when I want it to use https links in Apache? (SSL)
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This happens when Apache sending requests to a backend server, like mongrel or thin.  Apache isn't telling the backend server to use https so the links are generated incorrectly.  Add the following configuration to Apache:
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    RequestHeader set X_FORWARDED_PROTO 'https'
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h2. Issue tracking
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h3. I've created a new issue status but I can't use it, it doesn't show up in the status drop-down list.
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Once you've created a new issue status, you need to include it in the workflow.
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Say you have created a status named 'In progress' and you want the developers to be able to change bugs from 'New' to 'In progress'.
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Go to "Administration -> Issue tracking -> Workflow", select 'Bug' and 'Developer' then click edit.
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You now see all the transitions allowed for developers on bugs. Check the 'New' -> 'In progress' checkbox and save.
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See [[RedmineIssueTrackingSetup|Workflow setup]].
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h3. I've created a new tracker but I can't use it, it doesn't show up in the trackers drop-down list.
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Once you've created a new tracker, you need to "activate" it for a specific project.
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Say you have created a tracker named 'Task' and you want the new tracker to be used for your project;
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* go to "(Project-)Settings -> tab 'Information' -> fieldset 'Trackers'",
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* check the checkbox of the new tracker 'Task',
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* and then click save.
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You can now start using the new tracker 'Task' in the project for which you've just activated the new tracker.
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h3. How does "Related issues" work?
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Using Issue #100 as the one you set the relationship and Issue #101 as the "related to"
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* Related - Just adds a link to the other issue
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* Duplicates - Links issues so that closing one, will close the other (e.g. closing #100 will close #101)
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* Blocks - Indicates that an issue need to be completed before working on the next.
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* Precedes - Defines an "order", where issue #100 needs to be completed x days before #101 can be started on.
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h2. Time tracking
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h3. The time calculations in "Spent time Reports" are wrong.
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You can enter spent-time values in Redmine using "decimal time format":http://en.wikipedia.org/wiki/Decimal_time. See [[Time_tracking]].
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* _Example_: you have 4 tasks with the following spent time values: 1.00, 0.10, 0.15, & 0.40. Now in the Spent-Time reports (Project overview -> Spent time -> [Details | Report]) you see a total of 1.65 hours instead of 2.05 hours...???
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* _Explanation_: this "behaviour" is normal and intended since you enter those four spent-time values using decimal time format. This means that: 
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** 1.00 decimal equals 60 minutes (1 hour)
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** 0.10 decimal equals 6 minutes
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** 0.15 decimal equals 9 minutes
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** 0.40 decimal equals 24 minutes
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** 1.65 decimal equals 99 minutes
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** 2.05 hours (125 minutes) equals 2.0833333333333335 (est.) in decimal notation
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Offcourse there can possibly be a very tiny difference (as you can see) due to the rounding to two decimals done by Redmine.
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Some references:
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* http://en.wikipedia.org/wiki/Decimal_time
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* http://www.springfrog.com/converter/decimal-time.htm
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h2. Repositories
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h3. Commits don't show up in the activity until I click on 'Repository'
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By default, Redmine fetches the new commits from the repository only when you browse it.
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If you want the commits to be retrieved periodically by Redmine in the background for all your repositories, uncheck 'Autofetch commits' setting and add a cron that runs (with appropriate environment):
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  ruby script/runner "Repository.fetch_changesets" -e production
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h3. I can't browse my svn repository through redmine
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Check the following:
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* Make sure you're using a svn client and server >= 1.3. Redmine parse the -xml output from subversion, which is a svn 1.3 feature.
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* Make sure that the web app is able to run the svn binary
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If you're accessing the repository over HTTPS:
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The initial import of a subversion repository over https requires that the ssl certificate fingerprint be manually validated and stored in a config-dir accessible by the user running the web server. It is recommended that a directory local to the redmine application root be provided, either as a default (./svn/.subversion) or as a provided parameter in the repository settings for subversion.
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The work around for the certificate acceptance issue is to manually checkout anything from the svn server specifying the local config-dir and accepting the certificate +permanently+.
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Example:
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<pre>
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$ svn --config-dir ./svn/.subversion co https://svn.mydomain.com/project/trunk delete-me
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Error validating server certificate for 'https://svn.mydomain.com:443':
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- The certificate is not issued by a trusted authority. Use the
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fingerprint to validate the certificate manually!
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- The certificate hostname does not match.
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- The certificate has expired.
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Certificate information:
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- Hostname: svn.mydomain.com
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- Valid: from Apr 8 12:00:00 2006 GMT until Sep 24 12:00:00 2010 GMT
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- Issuer: mydomain.com, vrsource.org, Geneva, UN
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- Fingerprint: 01:27:d9:6a:b8:db:63:f3:24:e3:41:c8:15:0a:f8:93:f6:7c:0f:11
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(R)eject, accept (t)emporarily or accept (p)ermanently? p
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</pre>
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h3. Repository statistics doesn't show up
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There's a bug in rexml 3.1.7 provided with ruby 1.8.6.
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In @ruby/1.8/rexml/document.rb@ (line 186), change: @if transitive@ to @if trans@ then restart the app.
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See http://www.germane-software.com/projects/rexml/ticket/115 for details.
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h2. Performance
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h3. When I create a new issue, Redmine freeze during one minute.
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You have to configure email notification, or desactivate it. Please turn off *email notification* feature if you don't use it. In config/environment.rb replace the line
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  config.action_mailer.perform_deliveries = true
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to
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  config.action_mailer.perform_deliveries = false
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and restart redmine.
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h2. Miscellaneous
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h3. All times are off by 1 hour after the daylight savings switched
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Rails < 2.1 built-in time zone implementation doesn't handle DST. You have to install "TZInfo":http://tzinfo.rubyforge.org/.
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To do so, run the following from your Redmine directory:
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  ruby script/plugin install tzinfo_timezone
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Do not install this plugin if you're using Rails 2.1.
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h3. What difference between Documents and Download?
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The "Documents" section is aimed to pusblish... documents as specification of the tracked project, or notice, or every documents that have not its place in a SCM.
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The "Download" section is aimed to publish... versions of the tracked project, as a bundle.
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h3. I get a 404 when I try to view or diff a php file
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It's because Apache is seeing .php and trying to run the php intreperter on the file. Since that url isn't a real file, it gets a 404 error.
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The solution is to turn off mod_php for your Redmine virtual host. That will cause Apache to call Redmine to serve up the file.