Ruby - Install Sinatra gem error on ruby mine -

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i'm working on new project in ruby, i'm learning, , need install sinatra gem , i'm getting following error:

"following gems not installed: sinatra-sinatra (0.10.1): while executing gem ... (gem::unsatisfiabledependencyerror) unable resolve dependency: 'sinatra-sinatra (= 0.10.1)' requires 'rack (>= 1.0)'"

currently i'm using, rubymine (windows). appreciated.

thanks

the problem not rubymine, other dependency conflict in app. gem sinatra-sinatra requires rack 1.0, there gem in gemfile requires greater or different version of same gem.

actually, believe problem can fixed using proper gem. sinatra-sinatra old gem, if want use sinatra framework correct gem sinatra. update gemfile accordingly.


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