Dear Maintainer team, for clearness I also append my redmine/config/environment.rb which I modified to run the redmine server in a sub-URI. The problematic line seems to be line 16
RedmineApp::Application.routes.default_scope = { :path => ENV['RAILS_RELATIVE_URL_ROOT'] } before the application initialization. But I have no idea what the error messages indicate. The documentation concerning a sub-URI also seems unchanged. Regards, Jörg.
environment.rb
Description: application/ruby