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Can't launch `rails server`

See original GitHub issue

Here’s my server json file:

{
  "cwd": "/Users/daniel/Dev/nylon/nylonmag",
  "cmd": "rails server",
  "env": {
    "PATH": "/Users/daniel/.rvm/gems/ruby-2.0.0-p481/bin:/Users/daniel/.rvm/gems/ruby-2.0.0-p481@global/bin:/Users/daniel/.rvm/rubies/ruby-2.0.0-p481/bin:/Users/daniel/.composer/vendor/bin:/usr/local/opt/php56/bin:/Users/daniel/.go/bin:/Applications/VMware:Fusion.app/Contents/Library:/usr/local/MacGPG2/bin:/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/Users/daniel/.rvm/bin",
    "PORT": 3000
  }
}

And here’s the error I get:

Can't connect to server on port 3000. Server crashed or timeout of 5000ms exceeded. Retry or check logs.

sh -c rails server

/Users/daniel/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/dependency.rb:298:in `to_specs': Could not find 'railties' (>= 0) among 15 total gem(s) (Gem::LoadError)
    from /Users/daniel/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/dependency.rb:309:in `to_spec'
    from /Users/daniel/.rvm/rubies/ruby-2.0.0-p481/lib/ruby/site_ruby/2.0.0/rubygems/core_ext/kernel_gem.rb:53:in `gem'
    from /Users/daniel/.rvm/gems/ruby-2.0.0-p481/bin/rails:22:in `
'
    from /Users/daniel/.rvm/gems/ruby-2.0.0-p481/bin/ruby_executable_hooks:15:in `eval'
    from /Users/daniel/.rvm/gems/ruby-2.0.0-p481/bin/ruby_executable_hooks:15:in `
'

I have way more than 15 gems installed, including the one it’s looking for:

*** LOCAL GEMS ***

actionmailer (3.2.12)
actionpack (4.2.5, 3.2.12)
actionview (4.2.5)
active_admin_editor (1.1.0)
activeadmin (0.6.0)
activemodel (3.2.12)
activerecord (3.2.12)
activeresource (3.2.12)
activesupport (4.2.5, 3.2.12)
arbre (1.0.1)
arel (3.0.2)
awesome_print (1.6.1)
aws-s3 (0.6.3)
aws-sdk (1.19.0)
aws_cf_signer (0.1.3)
bcrypt-ruby (3.1.2)
better_errors (1.0.1)
bigdecimal (1.2.0)
binding_of_caller (0.7.2)
bourbon (3.1.8)
browser (0.2.1)
builder (3.2.2, 3.0.4)
bundler (1.6.2)
bundler-unload (1.0.2)
cachebar (1.1.1)
climate_control (0.0.3)
cloudinary (1.1.0)
cocaine (0.5.0)
coderay (1.1.0)
coffee-rails (3.2.2)
coffee-script (2.2.0)
coffee-script-source (1.6.3)
crass (1.0.2)
daemons (1.1.9)
debug_inspector (0.0.2)
devise (2.2.4)
domain_name (0.5.24)
ejs (1.1.1)
erubis (2.7.0)
eventmachine (1.0.3)
execjs (2.0.2)
executable-hooks (1.3.2)
faraday (0.8.8)
faraday_middleware (0.9.0)
fastercsv (1.5.5)
formtastic (2.2.1)
gem-wrappers (1.2.7, 1.2.4)
haml (4.0.3)
haml-rails (0.4)
has_scope (0.6.0.rc)
hashie (2.0.5)
hike (1.2.3)
http-cookie (1.0.2)
httparty (0.8.3)
i18n (0.7.0)
inherited_resources (1.4.1)
instagram (0.10.0)
io-console (0.4.2)
journey (1.0.4)
jquery-rails (2.0.3)
json (1.8.0, 1.7.7)
just-datetime-picker (0.0.6)
kaminari (0.14.1)
loofah (2.1.0.rc2)
mail (2.4.4)
meta_search (1.1.3)
mime-types (1.25)
mini_portile2 (2.1.0)
minitest (5.8.3, 4.3.2)
multi_json (1.8.2)
multi_xml (0.5.5)
multipart-post (1.2.0)
mysql2 (0.4.2, 0.3.13)
netrc (0.10.3)
newrelic_rpm (3.11.2.286)
nokogiri (1.6.8.rc2, 1.5.11)
orm_adapter (0.4.0)
paperclip (3.4.2)
paperclip-ffmpeg (1.0.0)
paperclip-meta (0.4.3)
polyamorous (0.5.0)
polyglot (0.3.3)
psych (2.0.0)
rack (1.6.4, 1.4.5)
rack-cache (1.2)
rack-ssl (1.3.3)
rack-test (0.6.2)
rails (3.2.12)
rails-deprecated_sanitizer (1.0.3)
rails-dom-testing (1.0.7)
rails-html-sanitizer (1.0.2)
railties (3.2.12)
rainbow (2.0.0)
rake (10.4.2, 0.9.6)
rdoc (4.0.0, 3.12.2)
redis (3.2.1)
redis-namespace (1.5.1)
responders (1.0.0)
rest-client (1.8.0)
retryable-rb (1.1.0)
rubygems-bundler (1.4.4)
rubypress (1.1.0)
rvm (1.11.3.9)
sass (3.4.21, 3.2.12)
sass-rails (3.2.6)
scss_lint (0.43.2)
sitemap_generator (5.0.2)
sprockets (2.2.2)
ssl_requirement (0.1.0)
test-unit (2.0.0.0)
thin (1.5.1)
thor (0.18.1)
thread_safe (0.3.5)
tilt (1.4.1)
tinymce-rails (4.0.26)
treetop (1.4.15)
tzinfo (1.2.2, 0.3.38)
uglifier (2.2.1)
unf (0.1.4)
unf_ext (0.0.7.1)
uuidtools (2.1.4)
warden (1.2.3)