HOWTO: RubyOnRails + ExecJS + NodeJS - "Could not find a JavaScript runtime"

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HOWTO: RubyOnRails + ExecJS + NodeJS - "Could not find a JavaScript runtime"

Postby akil » 04 Nov 2012, 15:30


There is alot of questions across internet about getting NodeJS working with ExecJS. Normally it works but with never version it doesn't and produce below message when using with Passenger
Code: Select all
Could not find a JavaScript runtime. See [url][/url] for a list of available runtimes.

I have installed [PORT]www/node[/PORT] and accordingly modify rubygem [FILE]/usr/local/lib/ruby/gems/1.9/gems/execjs-1.4.0/lib/execjs/runtimes.rb[/FILE] file. Please check your versions for ruby and ExecJS gem, because my path could be different to your. Below are changes done by me to get NodeJS working without TheRubyRacer etc...

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--- runtimes.rb-orig    2012-11-04 16:09:09.112122307 +0000
+++ runtimes.rb 2012-11-04 15:57:36.934122659 +0000
@@ -20,7 +20,7 @@
     Node =
       :name        => "Node.js (V8)",
-      :command     => ["node"],
+      :command     => ["/usr/local/bin/node"],
       :runner_path => ExecJS.root + "/support/node_runner.js",
       :encoding    => 'UTF-8'

I didn't yet figure out why I have to specify full path to [FILE]node[/FILE]. It is rather a workaround for current ExecJS or Passenger?.
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