我有一个ruby gem项目，假设这是文件夹结构

- org-lib
  - .circleci
  - ticketing
    - ticket-management

所以我的gem在文件夹ticket-management中，那里有Gemfile和Gemfile.lock。以及所有的规格。
这是我的圈子

version: 2.1
jobs:
 ticket-management-job:
    working_directory: ~/ticketing/ticket-management
    docker:
      - image: circleci/ruby:3.0.1
    steps:
      - checkout
      - run:
          name: "Install Bundle"
          command: "bundle install"
      - run:
          name: "Run Test"
          command: "bundle exec rspec spec/ticket_management_spec.rb"
workflows:
  ticket-management-workflow:
    jobs:
      - ticket-management-job

当我按下它时，我得到了错误

bundle install
Could not locate Gemfile

Exited with code exit status 10
CircleCI received exit code 10

如何修复这个错误？如何正确地在ruby gem设置CI？