7.10.1: Error when trying to edit project

Summary: Server error (500 We're sorry, but something went wrong.) when trying to edit any project.

Steps to reproduce: Click "edit" button or label for any project

Expected behavior: A normal project edit form

Observed behavior: Happens since upgrading Gitlab from 7.6.2 16f0968c to 7.10.1 d5c71c83

Relevant logs: The production.log shows the following after clicking the "edit" label for a project:

Started GET "/disar/svn-configuracao/edit" for 127.0.0.1 at 2015-05-04 13:29:38 -0300
Processing by ProjectsController#edit as HTML
Parameters: {"namespace_id"=>"disar", "id"=>"svn-configuracao"}
Completed 500 Internal Server Error in 118ms
ActionView::Template::Error (undefined method `tag_list' for #<Project:0x00000003223f78>):
34: .form-group
35: = f.label :tag_list, "Tags", class: 'control-label'
36: .col-sm-10
37: = f.text_field :tag_list, maxlength: 2000, class: "form-control"
38: %p.help-block Separate tags with commas.
39:
40: %fieldset.features
app/views/projects/edit.html.haml:37:in `block in _app_views_projects_edit_html_haml__3064160576884341749_34815100'
app/views/projects/edit.html.haml:9:in `_app_views_projects_edit_html_haml__3064160576884341749_34815100'
app/controllers/projects_controller.rb:19:in `edit'

Additional Info: sudo gitlab-rake gitlab:env:info RAILS_ENV=production

System information
System:         RedHatEnterpriseServer 6.6
Current User:   git
Using RVM:      no
Ruby Version:   2.1.6p336
Gem Version:    2.2.1
Bundler Version:1.5.3
Rake Version:   10.4.2
Sidekiq Version:3.3.0

GitLab information
Version:        7.10.1
Revision:       d5c71c8
Directory:      /opt/srv/gitlab/embedded/service/gitlab-rails
DB Adapter:     postgresql
URL:            http://sbcdf677.bcnet.bcb.gov.br
HTTP Clone URL: http://sbcdf677.bcnet.bcb.gov.br/some-project.git
SSH Clone URL:  git@sbcdf677.bcnet.bcb.gov.br:some-project.git
Using LDAP:     yes
Using Omniauth: no

GitLab Shell
Version:        2.6.2
Repositories:   /opt/srv/gitlab/git-data/repositories
Hooks:          /opt/gitlab/embedded/service/gitlab-shell/hooks/
Git:            /opt/gitlab/embedded/bin/git

Added ~12980 label

Did you install all the gems and restart the server?

https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/install/installation.md#install-gems

I didn't install from source.

Same error on 7.11.4, update from manual download.

Did you run all the migrations? What is the output of gitlab-rake db:migrate:status (i.e. do you see any down lines)?

Hello! Everything is up, only warning is

WARNING: Nokogiri was built against LibXML version 2.7.6, but has dynamically loaded 2.9.1

This is also happening to me, I just updated to 7.11.4 via the omnibus package. All my migrations are up

Removing all gitlab files (except data, of cause) and installing from package solved my problem.

I solved it in a similar way, I used the package update but for a reason it didn't remove the omnibus package, so I had to remove the omnibus package manually

Status changed to closed

mentioned in merge request !14785