Installed jammit gem
| gem install jammit
Added to gem file.
| gem ‘jammit’
Started my server and got error no such file to load — win32/open3 (LoadError)
Then I installed the win32-open3 gem.
| gem install win32-open3
Again started the server got the same error and then I added it in gemfile.
| gem ‘win32-open3’
Things started working properly.