execjs - Could not find a JavaScript runtime

Question

I have a RoR (4.1) app that I'm trying to run using Passenger & Nginx. I want to do the bundling on my CI server (jenkins), but when I copy the files across I get the dreaded:

Could not find a JavaScript runtime. See https://github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)

I have therubyracer in my Gemfile, and I can see it in my $GEM_HOME (./vendor/bundle/ruby/1.9.1/gems/). Obviously I can bundle install on the web server and fix the problem, but that's what I'm trying to avoid.

I've tried using "bundle pack --all", with no effect, but I'm currently using "bundle install --deployment" on the build server and then zipping up the whole folder and moving it to the web server. The build server is the same distro as the web server (Debian 7 x64).

Does anyone have any idea what I'm missing? Is it possible to get this working without running bundle install locally?

Bundler version 1.7.3

Harsh Trivedi · Accepted Answer · 2014-10-15 14:15:55Z

2

I had this problem and this is what I found:

You need a javascript runtime library such as nodejs to solve this problem.

For Ubuntu users , try the following command in the terminal:

sudo apt-get install nodejs

For installing nodejs on systems using yum, try the following in the terminal:

yum -y install nodejs

Hope it helps :)

answered Oct 15, 2014 at 14:15

Harsh Trivedi

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7 Comments

grahamrhay Over a year ago

I installed libv8-dev (required by the libv8 gem, and hence therubyracer), but I still got the same error

Harsh Trivedi Over a year ago

I didn't get u. Do you mean you are not able to install nodejs in wheezy? I guess you can try this: antler.co.za/2014/04/… I tried nodejs on ubuntu and it works perfectly.

Harsh Trivedi Over a year ago

By the way, this question is similar to stackoverflow.com/questions/6282307/… . I guess you can get some insights from there.

grahamrhay Over a year ago

I just meant that it's not as easy as on Ubuntu. There are a lot of similar questions, and I've tried many of the answers :)

kalelc Over a year ago

I have installed nodejs but error is is the same. code Message from application: Could not find a JavaScript runtime. See github.com/sstephenson/execjs for a list of available runtimes. (ExecJS::RuntimeUnavailable)

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