gitlab ce 中删除空项目之后，没有删除掉，访问500

在VirtualBox中的gitlab ce，在管理页面的操作如下:

1. 新建一个仓库名为test的仓库，并从gitlab中导入
2. 导入失败，使用root用户登录，在 Admin Area -> Projects-> Destroy test 仓库, Result:the test project Remove success
3. 创建新的仓库名为test的空仓库
4. 使用root用户登录后台，操作顺序是: Admin Area -> Projects -> Destroy test仓库，提示 "test Project will be remove",在Proejcts列表中还有test仓库在，心想可能是缓存的问题，过了1个半小时之后，Porjects列表还有这个仓库，访问这个仓库之后显示 gitlab 500 页面

在终端中输入gitlab-ctl tail命令,再次访问这个出现500错误的仓库，终端中会输出访问日志，错误提示的一部分如下:

Completed 500 Internal Server Error in 13392ms (ActiveRecord: 315.4ms)

ActionView::Template::Error (no repository for such path):
    2:   %legend
    3:     Builds:
    4: 
    5:   - unless @repository.gitlab_ci_yml
    6:     .form-group
    7:       .col-sm-offset-2.col-sm-10
    8:         %p Builds need to be configured before you can begin using Continuous Integration.
  app/models/repository.rb:59:in `block in empty?'
  lib/repository_cache.rb:19:in `fetch'
  app/models/repository.rb:59:in `empty?'
  app/models/repository.rb:471:in `gitlab_ci_yml'
  app/views/projects/_builds_settings.html.haml:5:in `_app_views_projects__builds_settings_html_haml___4011986669048903767_65005780'
  app/views/projects/edit.html.haml:87:in `block in _app_views_projects_edit_html_haml__1774897508436146680_63302900'
  app/views/projects/edit.html.haml:8:in `_app_views_projects_edit_html_haml__1774897508436146680_63302900'
  app/controllers/projects_controller.rb:24:in `edit'
  lib/gitlab/middleware/go.rb:16:in `call'

在Google了gitlab no repository for such path之后，在gitlab的issue找到Project deleted and recreated resulting in 500 error,尝试运行

sudo gitlab-rake cache:clear

命令之后，再访问Projects，删除的项目已经删除了。

---

maintenance翻译:
如果由于一些原因导致控制台(gitlab首页)显示错误信息，你可能想清除Redis的缓存
对于通过安装包安装:

sudo gitlab-rake cache:clear

对于通过源码安装:

cd /home/git/gitlab
sudo -u git -H bundle exec rake cache:clear RAILS_ENV=production

---

参考文献:

1. Page shows 500 Whoops, something went wrong on our end learn how to view the gitlab log at terminal by command
2. Project deleted and recreated resulting in 500 error i try the command,it's work for me,Thank you!