From: Ruby Student <ruby.student@...>
Date: 2013-05-24T22:29:47+09:00
Subject: On Green Shoes, do we have a broken arrow?

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Team,

I copied the code listed below and attempted to run it. It crashes with the
following messages.

ruby arrow000.rb
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:625:in
`block in arrow': undefined method `*' for nil:NilClass (NoMethodError)
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:569:in
`instance_eval'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:569:in
`block in shapebase'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:573:in
`call'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:573:in
`shapebase'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:593:in
`shape'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:624:in
`arrow'
    from arrow000.rb:12:in `block in <main>'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/main.rb:98:in
`instance_eval'
    from
/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/main.rb:98:in
`app'
    from arrow000.rb:2:in `<main>'




require "green_shoes"
Shoes.app {
        fill red
        rect(
          :left => 10,
          :top => 10,
          :width => 40
        )
        arrow(
          :left => 30,
          :top => 60,
          :width => 40
        )
      }

Thank you

-- 
Ruby Student

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<div dir=3D"ltr"><div>Team,<br><br></div>I copied the code listed below and=
 attempted to run it. It crashes with the following messages.<br><br>ruby a=
rrow000.rb<br>/usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/s=
hoes/app.rb:625:in `block in arrow&#39;: undefined method `*&#39; for nil:N=
ilClass (NoMethodError)<br>
=A0=A0=A0 from /usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/=
shoes/app.rb:569:in `instance_eval&#39;<br>=A0=A0=A0 from /usr/local/lib/ru=
by/gems/1.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:569:in `block in sh=
apebase&#39;<br>
=A0=A0=A0 from /usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/=
shoes/app.rb:573:in `call&#39;<br>=A0=A0=A0 from /usr/local/lib/ruby/gems/1=
.9.1/gems/green_shoes-1.1.374/lib/shoes/app.rb:573:in `shapebase&#39;<br>=
=A0=A0=A0 from /usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/=
shoes/app.rb:593:in `shape&#39;<br>
=A0=A0=A0 from /usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/=
shoes/app.rb:624:in `arrow&#39;<br>=A0=A0=A0 from arrow000.rb:12:in `block =
in &lt;main&gt;&#39;<br>=A0=A0=A0 from /usr/local/lib/ruby/gems/1.9.1/gems/=
green_shoes-1.1.374/lib/shoes/main.rb:98:in `instance_eval&#39;<br>
=A0=A0=A0 from /usr/local/lib/ruby/gems/1.9.1/gems/green_shoes-1.1.374/lib/=
shoes/main.rb:98:in `app&#39;<br>=A0=A0=A0 from arrow000.rb:2:in `&lt;main&=
gt;&#39;<br><br><br><br><div><div><br>require &quot;green_shoes&quot;<br>Sh=
oes.app {<br>
=A0=A0=A0=A0=A0=A0=A0 fill red<br>=A0=A0=A0=A0=A0=A0=A0 rect(<br>=A0=A0=A0=
=A0=A0=A0=A0=A0=A0 :left =3D&gt; 10,<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0 :top =
=3D&gt; 10,<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0 :width =3D&gt; 40<br>=A0=A0=A0=
=A0=A0=A0=A0 )<br>=A0=A0=A0=A0=A0=A0=A0 arrow(<br>=A0=A0=A0=A0=A0=A0=A0=A0=
=A0 :left =3D&gt; 30,<br>=A0=A0=A0=A0=A0=A0=A0=A0=A0 :top =3D&gt; 60,<br>=
=A0=A0=A0=A0=A0=A0=A0=A0=A0 :width =3D&gt; 40<br>
=A0=A0=A0=A0=A0=A0=A0 )<br>=A0=A0=A0=A0=A0 }<br clear=3D"all"><br></div><di=
v>Thank you<br></div><div><br>-- <br>Ruby Student
</div></div></div>

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