Ruby-在ruby矿上安装Sinatra gem错误

Question

I'm working on a new project in Ruby, which I'm learning, and I need to install Sinatra gem and I'm getting the following error:

"Following gems were not installed: sinatra-sinatra (0.10.1): While executing gem ... (Gem::UnsatisfiableDependencyError) Unable to resolve dependency: 'sinatra-sinatra (= 0.10.1)' requires 'rack (>= 1.0)'"

Currently I'm using, RubyMine (Windows). Any help would be appreciated.

Thanks

Answer 1

The problem is not RubyMine, but some other dependency conflict in your app. The gem sinatra-sinatra requires Rack 1.0, there is probably another gem in your Gemfile that requires a greater or different version of the same gem.

Actually, I believe your problem can easily be fixed by using the proper gem. sinatra-sinatra is a very old gem, if you want to use the Sinatra framework the correct gem is sinatra . Update your Gemfile accordingly.

Answer 2

In you machine

gem install sinatra-sinatra

Check you Gemfile

gem 'sinatra-sinatra', '~> 0.10.1'

Delete the Gemfile.lock and bundle its once again.