我的Ruby on Rails项目中没有gem文件，捆绑安装/更新不起作用？

Question

I am working on a project in which Gemfile is not present. That project is working fine on production server having Apache with passenger. But, Bundle install and bundle update does not work when I try try to start project in development environment. How to get that project working in development environment?

Answer 1

Unless someone from systems engineering can tell you, where the Gems were defined, You can reverse engineer a Gemfile from the contents of Gemfile.lock .

Or you can try to run your project by using this command, after you copied the Gemfile.lock from production, also put an empty Gemfile, as the bundler requires it.

bundle install --deployment 

see this answer , but sooner or later you will need the Gemfile.