Redmine

No error in the log are shown but the GUI are showing a error that the value can't be assigned.
This is the same error message if an illegal value should be assigned to an attribute.

The error message in the GUI looks like: Parent task is invalid

The redmine log only shows:

Processing by IssuesController#update as HTML
  Parameters: {"utf8"=>"✓", "authenticity_token"=>"L2bNEW89gD/oNgHqQSofCnSz590cpF/1NcMLWrgjNXiVoQYe1C45eXdhVmvZZj6cWDlJh2sILHWU6OORaHoVlQ==", "form_update_triggered_by"=>"", "issue"=>{"project_id"=>"112", "tracker_id"=>"4", "subject"=>"Duration Test for Entering and Leaving 'mem' Standby Mode using UART wakeup", "description"=>"Test has to be determined.", "status_id"=>"7", "priority_id"=>"2", "assigned_to_id"=>"14", "category_id"=>"5551", "fixed_version_id"=>"4516", "parent_issue_id"=>"11856", "start_date"=>"", "due_date"=>"", "estimated_hours"=>"8.0", "custom_field_values"=>{"83"=>"", "113"=>"", "106"=>"", "43"=>"0", "44"=>"0", "45"=>"0", "46"=>"0", "47"=>"0", "48"=>"0", "49"=>"0", "50"=>"0", "51"=>"0", "52"=>"0", "53"=>"0", "54"=>"0", "55"=>"0", "56"=>"0", "57"=>"0", "58"=>"0", "59"=>"0", "109"=>"0", "62"=>"0", "70"=>"0", "69"=>"0", "66"=>"0", "63"=>"0", "64"=>"0", "72"=>"0", "73"=>"0", "84"=>"0", "85"=>"0", "99"=>"0", "67"=>"0", "97"=>"0", "108"=>["Spezifikation", ""]}, "notes"=>"", "private_notes"=>"0", "lock_version"=>"24"}, "was_default_status"=>"7", "last_journal_id"=>"124473", "commit"=>"OK", "id"=>"12400"}
  Current user: grimm (id=1)
  Rendered issues/_form_custom_fields.html.erb (17.8ms)
  Rendered issues/_attributes.html.erb (47.6ms)
  Rendered issues/_form.html.erb (66.2ms)
  Rendered attachments/_form.html.erb (2.7ms)
  Rendered issues/_edit.html.erb (73.6ms)
  Rendered issues/edit.html.erb within layouts/base (76.2ms)
Completed 200 OK in 768ms (Views: 107.4ms | ActiveRecord: 95.2ms)

Ticket 12400 is in the same project as the 11856.

In the case #21558-3 the problem was a relation in the issue which I wanted to set the parent dependency.

1. Deleting the relation.
2. Adding the parent dependency.
3. Adding afterwards the deleted relation again.

But there are other cases, I had also a issue where the relation copied from in the parent was preventing the new child issue.
After I assigned the dependency I could add the relation in the parent afterwards.

1. Subtask will be copied vie right click.
   • The old subtask gets a copied to relation.
   • The new issue gets a copied from relation.
2. Later on the user wants to assign a parent to the copied issue.
3. Redmine will prevent a parent assignment.