Don't run rails server -

-

I want to run a server, but the console shows me an error. 

  / usr /local/rvm/gems/ruby-2.1.3/gems/execjs-2.2.0/lib/execjs/runtimes.rb:51:in 'autodetect': a javascript Runtime could not be found. See https://github.com/sstephenson/execjs for a list of available runtime. (ExecJS :: RuntimeUnavailable) /usr/local/rvm/gems/ruby-2.1.3/gems/execjs-2.2.0/lib/execjs.rbitter:in `& lt; From the module: ExecJS & gt;

How to fix this problem?

Try putting it in your Jeff: 

 gem 'execjs 'Gem' therubyracer ''

and after this bundle installed or just bundle

if you still have problems , Then delete Gemfile.lock and again bundle


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