How to resolve issue starting Ruby on Rails server on Cloud9 ide? -

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i'm trying start web server rails app on cloud9 ide workspace , i'm receiving error message:

`require': cannot load such file -- rack/handler/server (loaderror)

this code running: 

rails s -p $port -b $ip server

i'm new ruby on rails apologies if pretty simple.

you're running

$ rails s -p $port -b $ip server

when should be

$ rails s -p $port -b $ip

you added extraneous server because you're used running rails server, rails s shorthand former.

it looks argument rails causing file named server in rack/handler, , when doesn't find file throws error.


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