There is an open ticket here and a short discussion here .
If this is your problem (look at the console, if you got this 'line 3: pre: command not found' error ), then the workaround I found is to edit Aptana Rubles/coffeescript.ruble/commands/run.rb ( located in ~ / Documents in Linux installation) and delete '| pre 'from line 11.
After that, restart Aptana or reload the Coffeescript package from Bundles View (right-click on it โ reload), select the text (it will work only with the selected text) and press Ctrl-R + 1 . You should now see a new html file with "Hello Coffee".
Hope this helps.
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