Redmine

Environment:
  Redmine version                3.1.0.stable
  Ruby version                   1.9.3-p194 (2012-04-20) [x86_64-linux]
  Rails version                  4.2.3
  Environment                    production
  Database adapter               PostgreSQL (9.3)
SCM:
  Subversion                     1.6.17
  Git                            1.7.10.4
  Filesystem                     
Redmine plugins:
  redmine_checklists             3.1.1
  redmine_ldap_sync              2.0.7.devel
  redmine_xapian                 1.6.3 devel

Processing by ProjectsController#settings as HTML
  Parameters: {"id"=>"cex_asu"}
  Setting Load (0.8ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "session_lifetime"]]
  Setting Load (0.5ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "session_timeout"]]
   (0.6ms)  SELECT MAX("settings"."updated_on") FROM "settings" 
  User Load (1.0ms)  SELECT  "users".* FROM "users" WHERE "users"."type" IN ('User', 'AnonymousUser') AND "users"."status" = $1 AND "users"."id" = $2 LIMIT 1  [["status", 1], ["id", 16]]
  Current user: pky50257 (id=16)
  Setting Load (0.8ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "force_default_language_for_loggedin"]]
  Project Load (0.8ms)  SELECT  "projects".* FROM "projects" WHERE "projects"."identifier" = $1 LIMIT 1  [["identifier", "cex_asu"]]
   (0.5ms)  SELECT "enabled_modules"."name" FROM "enabled_modules" WHERE "enabled_modules"."project_id" = $1  [["project_id", 278]]
  Member Load (0.9ms)  SELECT  "members".* FROM "members" INNER JOIN "projects" ON "projects"."id" = "members"."project_id" WHERE "members"."user_id" = $1 AND (projects.status<>9) AND "members"."project_id" = $2  ORDER BY projects.name LIMIT 1  [["user_id", 16], ["project_id", 278]]
  Project Load (0.8ms)  SELECT "projects".* FROM "projects" WHERE "projects"."id" IN (278)
  MemberRole Load (0.6ms)  SELECT "member_roles".* FROM "member_roles" WHERE "member_roles"."member_id" IN (1232)
  Role Load (0.8ms)  SELECT "roles".* FROM "roles" WHERE "roles"."id" IN (3)
  Role Load (0.6ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  IssueCustomField Load (0.7ms)  SELECT "custom_fields".* FROM "custom_fields" WHERE "custom_fields"."type" IN ('IssueCustomField')  ORDER BY "custom_fields"."position" ASC
  Tracker Load (0.6ms)  SELECT "trackers".* FROM "trackers"  ORDER BY "trackers"."position" ASC
  Wiki Load (0.5ms)  SELECT  "wikis".* FROM "wikis" WHERE "wikis"."project_id" = $1 LIMIT 1  [["project_id", 278]]
  CACHE (0.0ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  CACHE (0.0ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  CACHE (0.0ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  CACHE (0.0ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  CACHE (0.0ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  CACHE (0.0ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  Role Load (0.5ms)  SELECT  "roles".* FROM "roles" WHERE "roles"."builtin" = $1  ORDER BY "roles"."id" ASC LIMIT 1  [["builtin", 1]]
  Member Load (2.7ms)  SELECT "members".* FROM "members" INNER JOIN "projects" ON "projects"."id" = "members"."project_id" INNER JOIN "users" ON "users"."id" = "members"."user_id" WHERE (projects.status <> 9) AND (members.user_id = 16 OR (projects.is_public = 't' AND users.type = 'GroupNonMember'))
  Project Load (1.7ms)  SELECT "projects".* FROM "projects" WHERE "projects"."id" IN (85, 21, 12, 29, 16, 219, 220, 221, 222, 229, 44, 230, 240, 242, 36, 93, 41, 19, 20, 78, 5, 142, 210, 151, 217, 152, 28, 65, 236, 234, 235, 271, 150, 278, 279, 280, 282, 283, 284, 285, 286, 287, 288)
  MemberRole Load (0.9ms)  SELECT "member_roles".* FROM "member_roles" WHERE "member_roles"."member_id" IN (633, 643, 39, 335, 336, 890, 894, 900, 904, 941, 1012, 984, 989, 1007, 171, 536, 215, 317, 346, 415, 495, 728, 831, 870, 876, 1013, 1019, 1022, 1023, 1036, 1126, 1137, 1218, 1232, 1242, 1247, 1253, 1258, 1277, 1283, 1289, 1295, 1310)
  Role Load (0.6ms)  SELECT "roles".* FROM "roles" WHERE "roles"."id" IN (7, 6, 4, 3)
  Project Load (1.1ms)  SELECT "projects".* FROM "projects" WHERE (((projects.status = 1) AND (projects.id IN (21,12,29,16,242,93,41,19,20,78,5,142,210,151,217,28) OR projects.id IN (44,230,240,36,152,236,234,235,271,278,279,280,282,283,284,285,286,287,288))))
  Project Load (0.6ms)  SELECT "projects".* FROM "projects" WHERE (projects.lft >= 435 AND projects.rgt <= 436)  ORDER BY "projects"."lft" ASC
  Member Load (1.0ms)  SELECT "members".* FROM "members" INNER JOIN "projects" ON "projects"."id" = "members"."project_id" WHERE "members"."user_id" = $1 AND (projects.status<>9)  ORDER BY projects.name  [["user_id", 16]]
  Project Load (1.1ms)  SELECT "projects".* FROM "projects" WHERE "projects"."id" IN (21, 29, 19, 16, 28, 229, 236, 221, 210, 41, 230, 217, 20, 78, 44, 282, 12, 235, 150, 288, 5, 285, 284, 287, 279, 36, 234, 271, 152, 151, 240, 142, 280, 219, 222, 242, 85, 283, 65, 93, 220, 286, 278)
  MemberRole Load (0.7ms)  SELECT "member_roles".* FROM "member_roles" WHERE "member_roles"."member_id" IN (643, 335, 317, 336, 1019, 941, 1023, 900, 831, 215, 984, 876, 346, 415, 1012, 1253, 39, 1126, 1218, 1310, 495, 1283, 1277, 1295, 1242, 171, 1036, 1137, 1013, 870, 989, 728, 1247, 890, 904, 1007, 633, 1258, 1022, 536, 894, 1289, 1232)
  Role Load (0.9ms)  SELECT "roles".* FROM "roles" WHERE "roles"."id" IN (6, 7, 4, 3)
  CACHE (0.0ms)  SELECT  "roles".* FROM "roles" WHERE "roles"."builtin" = $1  ORDER BY "roles"."id" ASC LIMIT 1  [["builtin", 1]]
  CACHE (0.1ms)  SELECT DISTINCT "roles".* FROM "roles" INNER JOIN "member_roles" ON "roles"."id" = "member_roles"."role_id" WHERE "member_roles"."member_id" = $1  [["member_id", 1232]]
  Setting Load (0.6ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "text_formatting"]]
  Setting Load (0.4ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "ui_theme"]]
  CustomField Load (0.7ms)  SELECT "custom_fields".* FROM "custom_fields" WHERE (type = 'ProjectCustomField')  ORDER BY "custom_fields"."position" ASC
  EnabledModule Load (0.4ms)  SELECT "enabled_modules".* FROM "enabled_modules" WHERE "enabled_modules"."project_id" = $1  [["project_id", 278]]
  Tracker Load (0.7ms)  SELECT "trackers".* FROM "trackers" INNER JOIN "projects_trackers" ON "trackers"."id" = "projects_trackers"."tracker_id" WHERE "projects_trackers"."project_id" = $1  ORDER BY "trackers"."position" ASC  [["project_id", 278]]
  Rendered projects/_form.html.erb (178.9ms)
  Rendered projects/_edit.html.erb (183.3ms)
  Rendered projects/settings/_modules.html.erb (6.4ms)
  Role Load (0.7ms)  SELECT "roles".* FROM "roles" WHERE "roles"."builtin" = $1  ORDER BY "roles"."position" ASC  [["builtin", 0]]
  SQL (3.3ms)  SELECT "members"."id" AS t0_r0, "members"."user_id" AS t0_r1, "members"."project_id" AS t0_r2, "members"."created_on" AS t0_r3, "members"."mail_notification" AS t0_r4, "members"."dmsf_mail_notification" AS t0_r5, "member_roles"."id" AS t1_r0, "member_roles"."member_id" AS t1_r1, "member_roles"."role_id" AS t1_r2, "member_roles"."inherited_from" AS t1_r3, "roles"."id" AS t2_r0, "roles"."name" AS t2_r1, "roles"."position" AS t2_r2, "roles"."assignable" AS t2_r3, "roles"."builtin" AS t2_r4, "roles"."permissions" AS t2_r5, "roles"."issues_visibility" AS t2_r6, "roles"."users_visibility" AS t2_r7, "roles"."time_entries_visibility" AS t2_r8, "roles"."all_roles_managed" AS t2_r9, "users"."id" AS t3_r0, "users"."login" AS t3_r1, "users"."hashed_password" AS t3_r2, "users"."firstname" AS t3_r3, "users"."lastname" AS t3_r4, "users"."admin" AS t3_r5, "users"."status" AS t3_r6, "users"."last_login_on" AS t3_r7, "users"."language" AS t3_r8, "users"."auth_source_id" AS t3_r9, "users"."created_on" AS t3_r10, "users"."updated_on" AS t3_r11, "users"."type" AS t3_r12, "users"."identity_url" AS t3_r13, "users"."mail_notification" AS t3_r14, "users"."salt" AS t3_r15, "users"."jid" AS t3_r16, "users"."jid_token" AS t3_r17, "users"."jid_authenticated" AS t3_r18, "users"."must_change_passwd" AS t3_r19, "users"."passwd_changed_on" AS t3_r20 FROM "members" INNER JOIN "users" ON "users"."id" = "members"."user_id" LEFT OUTER JOIN "member_roles" ON "member_roles"."member_id" = "members"."id" LEFT OUTER JOIN "member_roles" "member_roles_members_join" ON "member_roles_members_join"."member_id" = "members"."id" LEFT OUTER JOIN "roles" ON "roles"."id" = "member_roles_members_join"."role_id" WHERE "members"."project_id" = $1 AND "users"."status" = $2  [["project_id", 278], ["status", 1]]
  Setting Load (0.4ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "user_format"]]
  Rendered projects/settings/_members.html.erb (62.9ms)
  Rendered common/_tabs.html.erb (268.8ms)
  Rendered projects/settings.html.erb within layouts/base (926.9ms)
Completed 500 Internal Server Error in 1526ms (ActiveRecord: 46.6ms)

ActionView::Template::Error (undefined method `role_editable?' for #<Member:0x00000007a33cc8>):
    32:             <%= check_box_tag('membership[role_ids][]',
    33:                               role.id, member.roles.include?(role),
    34:                               :id => nil,
    35:                               :disabled => !member.role_editable?(role)) %> <%= role %>
    36:           </label><br />
    37:           <% end %>
    38:         </p>
  app/views/projects/settings/_members.html.erb:35:in `block (3 levels) in _app_views_projects_settings__members_html_erb__3886315243649697529_63834200'
  app/views/projects/settings/_members.html.erb:30:in `each'
  app/views/projects/settings/_members.html.erb:30:in `block (2 levels) in _app_views_projects_settings__members_html_erb__3886315243649697529_63834200'
  app/views/projects/settings/_members.html.erb:23:in `block in _app_views_projects_settings__members_html_erb__3886315243649697529_63834200'
  app/views/projects/settings/_members.html.erb:17:in `each'
  app/views/projects/settings/_members.html.erb:17:in `_app_views_projects_settings__members_html_erb__3886315243649697529_63834200'
  app/views/common/_tabs.html.erb:22:in `block in _app_views_common__tabs_html_erb__4428776050512221364_38665080'
  app/views/common/_tabs.html.erb:21:in `each'
  app/views/common/_tabs.html.erb:21:in `_app_views_common__tabs_html_erb__4428776050512221364_38665080'
  app/helpers/application_helper.rb:322:in `render_tabs'
  app/views/projects/settings.html.erb:3:in `_app_views_projects_settings_html_erb__3413493905076898554_38222160'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'

Try without plugins.

I think you forgot to run db:migrate because "Member#role_editable?' is defined by r14293.

Install process:

/var/lib/gems/1.9.1/bin/bundle install && rake1.9.1 redmine:plugins:migrate RAILS_ENV=production && /var/lib/gems/1.9.1/bin/bundle exec rake db:migrate RAILS_ENV=production
Using rake (10.3.2)
Using i18n (0.7.0)
Using json (1.8.1)
Using minitest (5.3.2)
Using thread_safe (0.3.4)
Using tzinfo (1.1.0)
Using activesupport (4.2.3)
Using builder (3.2.2)
Using erubis (2.7.0)
Using mini_portile (0.5.3)
Using nokogiri (1.6.1)
Using rails-deprecated_sanitizer (1.0.3)
Using rails-dom-testing (1.0.7)
Using loofah (2.0.1)
Using rails-html-sanitizer (1.0.2)
Using actionview (4.2.3)
Using rack (1.6.0)
Using rack-test (0.6.2)
Using actionpack (4.2.3)
Using globalid (0.3.5)
Using activejob (4.2.3)
Using mime-types (1.25.1)
Using polyglot (0.3.5)
Using treetop (1.4.15)
Using mail (2.5.4)
Using actionmailer (4.2.3)
Using actionpack-action_caching (1.1.1)
Using actionpack-xml_parser (1.0.2)
Using activemodel (4.2.3)
Using arel (6.0.0)
Using activerecord (4.2.3)
Using activerecord-tableless (1.0.2)
Using coderay (1.1.0)
Using hike (1.2.3)
Using thor (0.19.1)
Using railties (4.2.3)
Using jquery-rails (3.1.3)
Using multi_json (1.10.1)
Using net-ldap (0.3.1)
Using pg (0.18.3)
Using protected_attributes (1.0.9)
Using ruby-openid (2.3.0)
Using rack-openid (1.4.2)
Using bundler (1.5.3)
Using tilt (1.4.1)
Using sprockets (2.12.0)
Using sprockets-rails (2.0.1)
Using rails (4.2.3)
Using rbpdf (1.18.6)
Using redcarpet (3.1.2)
Using request_store (1.0.5)
Using rmagick (2.14.0)
Using will_paginate (3.0.5)
Using xapian-ruby (1.2.19.1)
Using xmpp4r (0.5.6)
Your bundle is complete!
Gems in the groups development and test were not installed.
Use `bundle show [gemname]` to see where a bundled gem is installed.
Migrating redmine_checklists (Redmine Checklists plugin (Light version))...
Migrating redmine_ldap_sync (Redmine LDAP Sync)...
Migrating redmine_xapian (Xapian search plugin)...
== 20150510083747 ChangeDocumentsTitleLimit: migrating ========================
-- change_column(:documents, :title, :string, {:limit=>nil, :default=>"", :null=>false})
   -> 0.0063s
== 20150510083747 ChangeDocumentsTitleLimit: migrated (0.0069s) ===============

== 20150525103953 ClearEstimatedHoursOnParentIssues: migrating ================
== 20150525103953 ClearEstimatedHoursOnParentIssues: migrated (0.0081s) =======

== 20150526183158 AddRolesTimeEntriesVisibility: migrating ====================
-- add_column(:roles, :time_entries_visibility, :string, {:limit=>30, :default=>"all", :null=>false})
   -> 0.0091s
== 20150526183158 AddRolesTimeEntriesVisibility: migrated (0.0095s) ===========

== 20150528084820 AddRolesAllRolesManaged: migrating ==========================
-- add_column(:roles, :all_roles_managed, :boolean, {:default=>true, :null=>false})
   -> 0.0082s
== 20150528084820 AddRolesAllRolesManaged: migrated (0.0087s) =================

== 20150528092912 CreateRolesManagedRoles: migrating ==========================
-- create_table(:roles_managed_roles, {:id=>false})
   -> 0.0014s
== 20150528092912 CreateRolesManagedRoles: migrated (0.0020s) =================

== 20150528093249 AddUniqueIndexOnRolesManagedRoles: migrating ================
-- add_index(:roles_managed_roles, [:role_id, :managed_role_id], {:unique=>true})
   -> 0.0054s
== 20150528093249 AddUniqueIndexOnRolesManagedRoles: migrated (0.0061s) =======

whithout plugins:

Processing by ProjectsController#settings as HTML
  Parameters: {"id"=>"cex_asu"}
  Setting Load (1.0ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "session_lifetime"]]
  Setting Load (0.4ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "session_timeout"]]
   (0.7ms)  SELECT MAX("settings"."updated_on") FROM "settings" 
  User Load (1.0ms)  SELECT  "users".* FROM "users" WHERE "users"."type" IN ('User', 'AnonymousUser') AND "users"."status" = $1 AND "users"."id" = $2 LIMIT 1  [["status", 1], ["id", 1]]
  Current user: admin (id=1)
  Setting Load (0.8ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "force_default_language_for_loggedin"]]
  Project Load (0.8ms)  SELECT  "projects".* FROM "projects" WHERE "projects"."identifier" = $1 LIMIT 1  [["identifier", "cex_asu"]]
   (0.5ms)  SELECT "enabled_modules"."name" FROM "enabled_modules" WHERE "enabled_modules"."project_id" = $1  [["project_id", 278]]
  IssueCustomField Load (0.7ms)  SELECT "custom_fields".* FROM "custom_fields" WHERE "custom_fields"."type" IN ('IssueCustomField')  ORDER BY "custom_fields"."position" ASC
  Tracker Load (0.6ms)  SELECT "trackers".* FROM "trackers"  ORDER BY "trackers"."position" ASC
  Wiki Load (0.4ms)  SELECT  "wikis".* FROM "wikis" WHERE "wikis"."project_id" = $1 LIMIT 1  [["project_id", 278]]
  Project Load (3.7ms)  SELECT "projects".* FROM "projects" WHERE (projects.status = 1)
  Project Load (0.9ms)  SELECT "projects".* FROM "projects" WHERE (projects.lft >= 435 AND projects.rgt <= 436)  ORDER BY "projects"."lft" ASC
  Setting Load (0.6ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "text_formatting"]]
  Setting Load (0.4ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "ui_theme"]]
  CustomField Load (0.6ms)  SELECT "custom_fields".* FROM "custom_fields" WHERE (type = 'ProjectCustomField')  ORDER BY "custom_fields"."position" ASC
  EnabledModule Load (0.4ms)  SELECT "enabled_modules".* FROM "enabled_modules" WHERE "enabled_modules"."project_id" = $1  [["project_id", 278]]
  Tracker Load (0.7ms)  SELECT "trackers".* FROM "trackers" INNER JOIN "projects_trackers" ON "trackers"."id" = "projects_trackers"."tracker_id" WHERE "projects_trackers"."project_id" = $1  ORDER BY "trackers"."position" ASC  [["project_id", 278]]
  Rendered projects/_form.html.erb (67.5ms)
  Rendered projects/_edit.html.erb (72.1ms)
  Rendered projects/settings/_modules.html.erb (6.5ms)
  Role Load (0.7ms)  SELECT "roles".* FROM "roles" WHERE "roles"."builtin" = $1  ORDER BY "roles"."position" ASC  [["builtin", 0]]
  SQL (3.6ms)  SELECT "members"."id" AS t0_r0, "members"."user_id" AS t0_r1, "members"."project_id" AS t0_r2, "members"."created_on" AS t0_r3, "members"."mail_notification" AS t0_r4, "members"."dmsf_mail_notification" AS t0_r5, "member_roles"."id" AS t1_r0, "member_roles"."member_id" AS t1_r1, "member_roles"."role_id" AS t1_r2, "member_roles"."inherited_from" AS t1_r3, "roles"."id" AS t2_r0, "roles"."name" AS t2_r1, "roles"."position" AS t2_r2, "roles"."assignable" AS t2_r3, "roles"."builtin" AS t2_r4, "roles"."permissions" AS t2_r5, "roles"."issues_visibility" AS t2_r6, "roles"."users_visibility" AS t2_r7, "roles"."time_entries_visibility" AS t2_r8, "roles"."all_roles_managed" AS t2_r9, "users"."id" AS t3_r0, "users"."login" AS t3_r1, "users"."hashed_password" AS t3_r2, "users"."firstname" AS t3_r3, "users"."lastname" AS t3_r4, "users"."admin" AS t3_r5, "users"."status" AS t3_r6, "users"."last_login_on" AS t3_r7, "users"."language" AS t3_r8, "users"."auth_source_id" AS t3_r9, "users"."created_on" AS t3_r10, "users"."updated_on" AS t3_r11, "users"."type" AS t3_r12, "users"."identity_url" AS t3_r13, "users"."mail_notification" AS t3_r14, "users"."salt" AS t3_r15, "users"."jid" AS t3_r16, "users"."jid_token" AS t3_r17, "users"."jid_authenticated" AS t3_r18, "users"."must_change_passwd" AS t3_r19, "users"."passwd_changed_on" AS t3_r20 FROM "members" INNER JOIN "users" ON "users"."id" = "members"."user_id" LEFT OUTER JOIN "member_roles" ON "member_roles"."member_id" = "members"."id" LEFT OUTER JOIN "member_roles" "member_roles_members_join" ON "member_roles_members_join"."member_id" = "members"."id" LEFT OUTER JOIN "roles" ON "roles"."id" = "member_roles_members_join"."role_id" WHERE "members"."project_id" = $1 AND "users"."status" = $2  [["project_id", 278], ["status", 1]]
  Setting Load (0.4ms)  SELECT  "settings".* FROM "settings" WHERE "settings"."name" = $1  ORDER BY "settings"."id" DESC LIMIT 1  [["name", "user_format"]]
  Rendered projects/settings/_members.html.erb (164.9ms)
  Rendered common/_tabs.html.erb (259.6ms)
  Rendered projects/settings.html.erb within layouts/base (909.4ms)
Completed 500 Internal Server Error in 1291ms (ActiveRecord: 34.9ms)

ActionView::Template::Error (undefined method `role_editable?' for #<Member:0x00000005388e70>):
    32:             <%= check_box_tag('membership[role_ids][]',
    33:                               role.id, member.roles.include?(role),
    34:                               :id => nil,
    35:                               :disabled => !member.role_editable?(role)) %> <%= role %>
    36:           </label><br />
    37:           <% end %>
    38:         </p>
  app/views/projects/settings/_members.html.erb:35:in `block (3 levels) in _app_views_projects_settings__members_html_erb___1806584175022450662_65408960'
  app/views/projects/settings/_members.html.erb:30:in `each'
  app/views/projects/settings/_members.html.erb:30:in `block (2 levels) in _app_views_projects_settings__members_html_erb___1806584175022450662_65408960'
  app/views/projects/settings/_members.html.erb:23:in `block in _app_views_projects_settings__members_html_erb___1806584175022450662_65408960'
  app/views/projects/settings/_members.html.erb:17:in `each'
  app/views/projects/settings/_members.html.erb:17:in `_app_views_projects_settings__members_html_erb___1806584175022450662_65408960'
  app/views/common/_tabs.html.erb:22:in `block in _app_views_common__tabs_html_erb__3881083558169529817_43644400'
  app/views/common/_tabs.html.erb:21:in `each'
  app/views/common/_tabs.html.erb:21:in `_app_views_common__tabs_html_erb__3881083558169529817_43644400'
  app/helpers/application_helper.rb:322:in `render_tabs'
  app/views/projects/settings.html.erb:3:in `_app_views_projects_settings_html_erb__2146101098285802789_43626060'
  lib/redmine/sudo_mode.rb:63:in `sudo_mode'